id:A076541 - OEIS Search Results

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a(n) = sum(k=1, n, C(n,k) mod k ).

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0, 1, 2, 2, 3, 8, 9, 11, 6, 13, 14, 26, 27, 28, 32, 46, 47, 49, 50, 68, 81, 82, 83, 116, 102, 101, 105, 105, 106, 142, 143, 143, 153, 172, 165, 222, 223, 216, 259, 278, 279, 256, 257, 327, 394, 295, 296, 422, 374, 318, 328, 384, 385, 420, 469, 461, 465, 450, 451 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n) seems to be asymptotic to c*n^2 with c around 0.18...`
	PROGRAM	`(PARI) a(n)=sum(k=1, n, binomial(n, k)%k)`
	CROSSREFS	`Row sums of A081371.` `Sequence in context: A153944 A046652 A091681 this_sequence A159789 A153932 A158763` `Adjacent sequences: A076538 A076539 A076540 this_sequence A076542 A076543 A076544`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Oct 19 2002`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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