id:A099561 - OEIS Search Results

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Sum C(n-3k,k-1), k=0..floor(n/4).

+0
3

0, 0, 0, 0, 1, 1, 1, 1, 3, 4, 5, 6, 10, 14, 19, 25, 36, 50, 69, 94, 131, 181, 250, 344, 476, 657, 907, 1251, 1728, 2385, 3292, 4543, 6272, 8657, 11949, 16492, 22765, 31422, 43371, 59863, 82629, 114051, 157422, 217285, 299915, 413966, 571388, 788673 (list; graph; listen)

	OFFSET	`0,9`
	FORMULA	`G.f.: x^4/((1-x^4)(1-x-x^4)); a(n)=a(n-1)+2a(n-4)-a(n-5)-a(n-8).`
	CROSSREFS	`Cf. A074331, A099560, A099562.` `Sequence in context: A071186 A164977 A103033 this_sequence A110300 A143713 A089912` `Adjacent sequences: A099558 A099559 A099560 this_sequence A099562 A099563 A099564`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 22 2004`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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