#ATTENDANCE QUIZ FOR LECTURE 11 of Dr. Z.'s Math454(02) Rutgers University

# Please Edit this .txt page with Answers

#Email  ShaloshBEkhad@gmail.com 
#Subject: p11
#with an attachment called
#p11FirstLast.txt
#(e.g. p11DoronZeilberger.txt)

#Right after finishing watching the lecture but no later than Oct. 13, 2020, 8:00pm


THE NUMBER OF ATTENDANCE QUESTIONS WERE: 3

PLEASE LIST ALL THE QUESTIONS FOLLOWED, AFTER EACH BY THE ANSWER

1. Who was Dr.Z's next door neighbor in 1980?
What did he reply to Dr.Z when asked "how many ways to break up Russian dolls"?
Joel Spencer

2. What is the A-number in the OEIS of this sequence?
1,2,5,15,52,203,877,4140
A000110

3. Which of Z(r) except for r=1 are in the OEIS?
For each of them list the A-number?

Z(2);
1, 2, 11, 87, 952, 13513, 237113, 5016728, 125121009, 3615047527, 

  119384499720, 4455637803543, 186152008588691, 8636436319397292, 

  441871067839416319, 24781002306869712365, 

  1515279889256750470086, 100546673139756241189021, 

  7209605987244352052104275, 556516294632874102717412282

A047797

Only r=2 is in the OEIS.