id:A081583 - OEIS Search Results

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Third row of Pascal-(1,2,1) array A081577.

+0
3

1, 10, 46, 136, 307, 586, 1000, 1576, 2341, 3322, 4546, 6040, 7831, 9946, 12412, 15256, 18505, 22186, 26326, 30952, 36091, 41770, 48016, 54856, 62317, 70426, 79210, 88696, 98911, 109882, 121636, 134200, 147601, 161866, 177022, 193096 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=(2+9n+9n^3)/2. G.f. (1+2x)^3/(1-x)^4.`
	CROSSREFS	`Cf. A038764, A081584.` `Sequence in context: A007941 A007940 A082604 this_sequence A106600 A085437 A024166` `Adjacent sequences: A081580 A081581 A081582 this_sequence A081584 A081585 A081586`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 23 2003`

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

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