A154327 - OEIS

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A154327

Diagonal sums of number triangle A132046.

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; refs; listen; history; internal format)

	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 * A074027 A018156 A051293` `Adjacent sequences: A154324 A154325 A154326 * A154328 A154329 A154330`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jan 07 2009`

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Last modified February 15 21:00 EST 2012. Contains 205852 sequences.