id:A104968 - OEIS Search Results

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Absolute row sums of triangle A104967.

+0
2

1, 2, 4, 6, 6, 12, 22, 32, 34, 52, 100, 150, 170, 266, 438, 640, 766, 1196, 1996, 2888, 3210, 4994, 8534, 12392, 15106, 22154, 34366, 52134, 62148, 96956, 156396, 217416, 262062, 394164, 643908, 950944, 1150368, 1689176, 2600992, 3767888, 4840338 (list; graph; listen)

	OFFSET	`0,2`
	PROGRAM	`(PARI) {a(n)=local(X=x+xO(x^n)); sum(k=0, n, abs(polcoeff(polcoeff((1-2X)/(1-X-Xy(1-2*X)), n, x), k, y)))}`
	CROSSREFS	`Cf. A104967, A104969.` `Sequence in context: A141677 A087459 A123258 this_sequence A142473 A132426 A072646` `Adjacent sequences: A104965 A104966 A104967 this_sequence A104969 A104970 A104971`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Mar 30 2005`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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