Founded 2003 by Drew Sills and Doron Zeilberger.
Former co-organizers: Drew Sills (2003-2007), Moa ApaGodu (2005-2006), Lara Pudwell (2006-2008), Andrew Baxter (2008-2011), Brian Nakamura (2011-2013), Edinah Gnang (2011-2013), Matthew Russell (2013-2016), Nathan Fox (2016-2017), Bryan Ek (2017-2018), Mingjia Yang (2018-2020), Yonah Biers-Ariel (2018-2020), Robert Dougherty-Bliss (2020-2024), Stoyan Dimitrov (2023-2025)
Current co-organizers:
Doron Zeilberger (doronzeil {at} gmail [dot] com)
Aurora Hiveley (aurora.hiveley {at} scarletmail [dot] rutgers [dot] edu)
Lucy Martinez (lm1154 {at} scarletmail [dot] rutgers [dot] edu)
Archive of Previous Speakers and Talks You can find links to videos of some of these talks as well. Currently, our videos are being posted to our Vimeo page. Previously, we had videos posted on our YouTube page.
Date: Thu., Sept. 10, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: Neil Sloane, The OEIS Foundation and Rutgers University.
Title: Highlights from the First 400,000 Sequences in the OEIS
Abstract: The OEIS should reach 400,000 sequences in the next two months, so it seems appropriate to review some of the highlights of the database as well as some current hot topics. I'll mention the shortest and the longest finite sequences (think Goodstein), the scariest, the most musical, the best rug design, the most wanted primes, the most potentially rewarding sequences, etc. Concerning current sequences, there are the best and the worst contributions from AI, and the handful of sequences I would most like to solve.
Date: Thu., Sept. 17, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker:
Thotsaporn "Aek" Thanatipanonda, Mahidol University International College in Thailand.
Title: tbd
Abstract: tbd
Date: Thu., Sept. 24, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: Victor Miller, Anduril Industries
Title: tbd
Abstract: tbd
Date: Thu., Oct. 1, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: Michael Milgram
Title: tbd
Abstract: tbd
Date: Thu., Oct. 8, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: Benoit Cloitre (independent researcher)
Title: tbd
Abstract: tbd
Date: Thu., Oct. 15, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: tbd
Title: tbd
Abstract: tbd
Date: Thu., Oct. 22, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: tbd
Title: tbd
Abstract: tbd
Date: Thu., Oct. 29 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: Nikolai Beluhov, Cambridge University
Title: Bootstrap Percolation and Partial Difference Equations
Abstract: We study a bootstrap percolation process on the integer lattice where each newly occupied point completes a copy of one of the patterns in some fixed collection. We aim, given this collection, to find the smallest size of a percolating seed. We show that, for two patterns in two dimensions, in essence the answer is given by the mixed volume of the patterns' convex hulls. Our motivation for studying this setup comes from the theory of partial difference equations. Conversely, our considerations yield one consistency criterion for systems of two partial difference equations in two dimensions
Date: Thu., Nov. 5, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: tbd
Title: tbd
Abstract: tbd
Date: Thu., Nov. 12, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: tbd
Title: tbd
Abstract: tbd
Date: Thu., Nov. 19, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: tbd
Title: tbd
Abstract: tbd
Date: Thu., Dec. 3, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: tbd
Title: tbd
Abstract: tbd
Date: Thu., Dec. 10, 2026, 5:00pm (Eastern Time)
Zoom Link [password: The 20th Catalan number, alias (40)!/(20!*21!), alias 6564120420 ]
Speaker: tbd
Title: tbd
Abstract: tbd