id:A134663 - OEIS Search Results

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Triangle read by rows in which n-th row gives the expansion coefficients of (1+x+x^4)^n.

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1, 1, 1, 0, 0, 1, 1, 2, 1, 0, 2, 2, 0, 0, 1, 1, 3, 3, 1, 3, 6, 3, 0, 3, 3, 0, 0, 1, 1, 4, 6, 4, 5, 12, 12, 4, 6, 12, 6, 0, 4, 4, 0, 0, 1, 1, 5, 10, 10, 10, 21, 30, 20, 15, 30, 30, 10, 10, 20, 10, 0, 5, 5, 0, 0, 1, 1, 6, 15, 20, 21, 36, 61, 60, 45, 66, 90, 60, 35, 60, 60, 20, 15, 30, 15, 0, 6, 6, 0 (list; graph; listen)

	OFFSET	`0,8`
	COMMENT	`The n-th row has 4n+1 entries.`
	LINKS	`S. Finch, P. Sebah and Z.-Q. Bai, Odd Entries in Pascal's Trinomial Triangle (arXiv:0802.2654)`
	MATHEMATICA	`CoefficientList[(1+x+x^4)^n, x]`
	CROSSREFS	`Cf. A027907, A038717.` `Sequence in context: A071432 A025253 A112178 this_sequence A000925 A003985 A065676` `Adjacent sequences: A134660 A134661 A134662 this_sequence A134664 A134665 A134666`
	KEYWORD	`nonn,tabf`
	AUTHOR	`Steven Finch (Steven.Finch(AT)inria.fr), Jan 25 2008`

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Last modified December 4 21:35 EST 2008. Contains 151309 sequences.

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