#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 next door neighbor in 1980? What did he reply to Dr. Z when asked "How many ways to break up Russian dolls"?

ANSWER:

Professor George Spencer; He replied, "That sounds like a Sterling question; it rings a bell!"


QUESTION #2:

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

ANSWER:

A000110


QUESTION #3:

Z:=r->seq(add(Snk(n,k)^r,k=1..n),n=1..20);
Which of Z(r) except for r=1 are in the OEIS? For each of them, list the A-number.

ANSWER:

Z(2): A047797
Z(3): Does not exist in OEIS
Z(4): Does not exist in OEIS
...