id:A100938 - OEIS Search Results

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Self-convolution of A092684.

+0
2

1, 2, 5, 10, 22, 46, 97, 200, 412, 844, 1729, 3536, 7227, 14754, 30093, 61312, 124782, 253664, 515085, 1044796, 2117158, 4286330, 8671103, 17529304, 35416016, 71518510, 144362774, 291299094, 587617054, 1185060666, 2389424213 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`A092684 is the left-most column of triangle A092683.`
	FORMULA	`a(n) = 1 + Sum_{k=1..n} Sum_{j=0..n-k} binomial(k, j)*a(j).`
	PROGRAM	`(PARI) {a(n)=1+sum(k=1, n, sum(j=0, n-k, binomial(k, j)*a(j)))}`
	CROSSREFS	`Cf. A092684, A092683.` `Sequence in context: A135098 A045621 A026655 this_sequence A018004 A124329 A101399` `Adjacent sequences: A100935 A100936 A100937 this_sequence A100939 A100940 A100941`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Nov 23 2004`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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