#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:

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

Q1. 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" [10:26]
A1. Joel Spencer. He said 'This is a Stirling question, it rings a Bell'

Q2. What is the A-number in OEIS of this sequence? [nops of SP(i)]
A2. A000110 Bell numbers. 

Q3. Which of Z(r) except for r=1 are in the OEIS? [Z:= r->seq(add(Snk(n,k)^r,k=1..n),n=1..20)] For each of them list the A Number
A3. 
r=2: A047797
r=3 and beyond: not in OEIS.