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A086613 Row sums of triangle A086612. 1
1, 2, 3, 8, 27, 95, 346, 1298, 4982, 19481, 77344, 310981, 1263768, 5182584, 21420400, 89139754, 373179358, 1570606386, 6641563144, 28204255713, 120231876230, 514315720218, 2207041605690, 9498267611429, 40985335385212 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..24.

FORMULA

G.f.: A(x) = (1+x) - x^2*(1+x)^2 + x*A(x)^2.

EXAMPLE

a(3)=-2-1+6+5=8, a(4)=-1-6+0+20+14=27, a(5)=0-5-22+10+70+42=95.

CROSSREFS

Cf. A086612 (triangle), A086634.

Sequence in context: A041399 A183948 A041503 * A121401 A318895 A093858

Adjacent sequences:  A086610 A086611 A086612 * A086614 A086615 A086616

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Jul 24 2003

STATUS

approved

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Last modified October 21 06:25 EDT 2018. Contains 316405 sequences. (Running on oeis4.)