id:A094103 - OEIS Search Results

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a(n) = sum along n-th diagonal of A094102 (sloping downward to left).

+0
2

1, 1, 2, 3, 4, 5, 8, 9, 13, 16, 22, 26, 37, 43, 60, 71, 98, 115, 160, 187, 259, 304, 420, 492, 681, 797, 1102, 1291, 1784, 2089, 2888, 3381, 4673, 5472, 7562, 8854, 12237, 14327, 19800, 23183, 32038, 37511, 51840, 60695, 83879, 98208, 135720, 158904, 219601 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`G.f.: (1+x+x^2+x^3) / [(1-x^3)(1-x^2-x^4)].`
	EXAMPLE	`a(8) = 2+3+2+1+1 = 9.`
	CROSSREFS	`Sequence in context: A063678 A005424 A105317 this_sequence A054181 A163077 A054168` `Adjacent sequences: A094100 A094101 A094102 this_sequence A094104 A094105 A094106`
	KEYWORD	`nonn,easy`
	AUTHOR	`Alysia Veenhof (ladyluck1899(AT)hotmail.com), May 05 2004`
	EXTENSIONS	`More terms from Pab Ter (pabrlos(AT)yahoo.com), May 24 2004`

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

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