id:A023837 - OEIS Search Results

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Sum of exponents in prime-power factorization of C(5n,n).

+0
1

1, 3, 3, 4, 6, 7, 8, 8, 7, 9, 12, 11, 14, 13, 14, 12, 15, 14, 15, 18, 17, 17, 19, 18, 17, 23, 22, 21, 25, 23, 26, 21, 23, 22, 24, 23, 24, 27, 27, 27, 27, 29, 27, 28, 31, 30, 33, 28, 31, 32, 33, 36, 38, 36, 38, 37, 35, 39, 40, 41, 41, 41, 39, 34, 38, 38, 38, 39, 41, 39, 46, 41, 43, 45, 43, 45, 48, 47 (list; graph; listen)

	OFFSET	`1,2`
	MAPLE	`with(numtheory):a:=proc(n) if n=0 then 0 else bigomega(binomial(5*n, n)) fi end: seq(a(n), n=1..78); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 11 2008`
	CROSSREFS	`Sequence in context: A161019 A137901 A138095 this_sequence A080013 A152949 A058660` `Adjacent sequences: A023834 A023835 A023836 this_sequence A023838 A023839 A023840`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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