id:A023816 - OEIS Search Results

Search: id:A023816

Displaying 1-1 of 1 results found.

page 1

Sum of exponents in prime-power factorization of C(2n,n).

+0
2

1, 2, 3, 3, 5, 5, 6, 6, 6, 6, 8, 7, 9, 11, 11, 9, 11, 11, 12, 12, 12, 12, 15, 13, 14, 15, 14, 14, 16, 15, 16, 15, 16, 16, 17, 15, 16, 18, 19, 17, 21, 20, 22, 22, 21, 22, 24, 22, 22, 23, 23, 22, 25, 23, 23, 22, 22, 23, 26, 25, 27, 28, 29, 25, 26, 25, 27, 29, 29, 28, 30, 28, 30, 32, 31, 30, 32, 32, 33 (list; graph; listen)

	OFFSET	`1,2`
	MAPLE	`with(numtheory):a:=proc(n) if n=0 then 0 else bigomega(binomial(2*n, n)) fi end: seq(a(n), n=1..79); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 11 2008`
	CROSSREFS	`Sequence in context: A117629 A081165 A087172 this_sequence A159237 A010761 A161172` `Adjacent sequences: A023813 A023814 A023815 this_sequence A023817 A023818 A023819`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

page 1

Search completed in 0.005 seconds

Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research