#ATTENDANCE QUIZ FOR LECTURE 24 of Dr. Z.'s Math454(02) Rutgers University # Please Edit this .txt page with Answers #Email ShaloshBEkhad@gmail.com #Subject: p24 #with an attachment called #p24FirstLast.txt #(e.g. p24DoronZeilberger.txt) #Right after finishing watching the lecture but no later than Dec. 8, 2020, 8:00pm THE NUMBER OF ATTENDANCE QUESTIONS WERE: 10 PLEASE LIST ALL THE QUESTIONS FOLLOWED, AFTER EACH, BY THE ANSWER # Question 1: State the integer partitions of 7 # Answer: # {[7],[6,1],[5,2],[4,3],[5,1,1],[4,2,1],[3,3,1],[3,2,2],[4,1,1,1],[3,2,1,1],[2,2,2,1], # [3,1,1,1,1],[2,2,1,1,1],[2,1,1,1,1,1],[1,1,1,1,1,1,1]} # Question 2: Write down the set of partitions of 7 into distinct parts and the number of # integer partitions that are odd. # Answer: # Distinct Parts: {[7],[6,1],[5,2],[4,3],[4,2,1]} # Odd Parts: {[7], [5,1,1], [3,3,1], [3,1,1,1,1], [1,1,1,1,1,1,1]} # The number of partitions with only distinct values and the number of partitions with # only odd values are equal. # Question 3: What is the A-Number of this sequence [1,2,3,5,7,11,15,22,30...]? # Answer: A000041 # Question 4: Who wrote the classic book on the theory of partitions? What is his birth date? # Answer: The Theory of Partitions was written by George E. Andrews. He was born # on December 4th, 1938. # Question 5: What is the A-Number of this sequence? [1,1,2,2,3,4,5,6,8,10,12,15,18,22..] # Answer: A000009 # Question 6: What is the A-Number of this sequence? [1,1,1,2,2,3,3,4,5,6,7,9,10,12,14,17...] # Answer: A003114 # Question 7: Whose theorem is it that these two above sequences are the same? # Answer: Rogers-Ramanujan Identity # Question 8: What is the A-Number of this sequence? [6,27,98, 315, 913, 2462...] # Answer: A071734 # Question 9: # (i) Does there exist a k between 0 and 6 such that seq(pn(7*n+k)/7,n=1..60); is an # integer sequence? What is the A-Number? # (ii) Does there exist a k between 0 and 9 such that seq(pn(10*n+k)/10,n=1..60); is an # integer sequence? What is the A-Number? # Big Open Problem: Can you find other A and B such that pn(A*n+B)/A is always an integer # sequence. # Answer: # (i) k = 5 yields an integer sequence. It is A071746 in the OEIS. # (ii) There exist no k between 0 and 9 such that the command yields an integer sequence. # Question 10: # Why should Dr. Z. from now on make you watch the lectures before the recitation? # Answer: Students can come in with questions from watching the lectures, so it # makes the recitations more helpful. Dr. Z. is also able to elaborate and explain # concepts that students are confused about from the lectures.