#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

Question 1: Who was Dr. Z's neighbour in 1980. What did he reply to Dr. Z when asked how many ways to break up Russian dolls. 
Answer 1: Joel Spencer - This is a Sterling question, it rings a bell. 

Question 2: What is the number in the OEIS of this sequence [1, 2, 5, 15, 52, 203, 877, 4140]
Answer 2: A110 	Bell or exponential numbers: number of ways to partition a set of n labeled elements.

Question 3: Which of Z(r) except for r=1 
for each of them list the A number

r = 2: A47797
r = 3 NOt in the OEIS
r = 4 NOt in the OEIS