id:A154327 - OEIS Search Results

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Diagonal sums of number triangle A154326.

+0
2

1, 1, 2, 5, 8, 15, 24, 41, 66, 109, 176, 287, 464, 753, 1218, 1973, 3192, 5167, 8360, 13529, 21890, 35421, 57312, 92735, 150048, 242785, 392834, 635621, 1028456, 1664079, 2692536, 4356617, 7049154, 11405773, 18454928, 29860703, 48315632 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: (1-x^2+2x^3+x^4)/((1-x^2)(1-x-x^2));` `a(n)=0^n-(3+(-1)^n)/2+2*F(n+1);`
	CROSSREFS	`Cf. A066629.` `Sequence in context: A066897 A078697 A066629 this_sequence A074027 A018156 A051293` `Adjacent sequences: A154324 A154325 A154326 this_sequence A154328 A154329 A154330`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jan 07 2009`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

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