id:A081586 - OEIS Search Results

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Fourth row of Pascal-(1,3,1) array A081578.

+0
3

1, 13, 73, 245, 593, 1181, 2073, 3333, 5025, 7213, 9961, 13333, 17393, 22205, 27833, 34341, 41793, 50253, 59785, 70453, 82321, 95453, 109913, 125765, 143073, 161901, 182313, 204373, 228145, 253693, 281081, 310373, 341633, 374925, 410313, 447861 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=(3+28n-24n^2+32n^3)/3. G.f. (1+3x)^3/(1-x)^4.`
	CROSSREFS	`Cf. A081585.` `Sequence in context: A084218 A125258 A060886 this_sequence A143008 A107963 A006230` `Adjacent sequences: A081583 A081584 A081585 this_sequence A081587 A081588 A081589`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 23 2003`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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