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A118437 Row sums of triangle A118435. 3
1, 2, 0, 8, -32, -128, 320, 128, 2048, 8192, -15360, 2048, -131072, -524288, 1064960, 32768, 8388608, 33554432, -66846720, 524288, -536870912, -2147483648, 4299161600, 8388608, 34359738368, 137438953472, -274810798080, 134217728 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..27.

FORMULA

G.f.: (1+8*x^3-32*x^5+384*x^6-256*x^7)/(1-2*x)/(1+4*x^2)/(1+64*x^4).

PROG

(PARI) {a(n)=polcoeff((1+8*x^3-32*x^5+384*x^6-256*x^7)/(1-2*x)/(1+4*x^2)/(1+64*x^4+x*O(x^n)), n)}

CROSSREFS

Cf. A118435 (triangle), A118436 (column 0).

Sequence in context: A076687 A062134 A002909 * A134185 A013489 A013342

Adjacent sequences:  A118434 A118435 A118436 * A118438 A118439 A118440

KEYWORD

sign

AUTHOR

Paul D. Hanna, Apr 28 2006

STATUS

approved

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Last modified May 6 02:35 EDT 2021. Contains 343579 sequences. (Running on oeis4.)