#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

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Attendance 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?"

Joel Spencer
"This is a sterling question. It rings a bell."

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Attendance Question 2:
What is the A-number in the OEIS of this sequence?
[1,2,5,15,52,203,877,4140]

A110.

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

r = 2: A047797
r = 3: Does not exist
r = 4: Does not exist