A145169 - OEIS

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A145169

G.f. A(x) satisfies A(x/A(x)^2) = 1/(1-x)^3.

1, 3, 24, 361, 7851, 214245, 6815986, 242659191, 9431036685, 393771017068, 17469277612998, 817033067908275, 40050828368606412, 2048642917085523633, 108968676087557745858, 6010617981960195923285, 343038687551360605111371

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Vaclav Kotesovec, Table of n, a(n) for n = 0..180

FORMULA

Self-convolution cube of A145167.

Self-convolution square yields A145170.

PROG

(PARI) {a(n)=local(A=1+x+x*O(x^n), B); for(n=0, n, B=serreverse(x/A^2); A=1/(1-B)^3); polcoeff(A, n)}

CROSSREFS

Cf. A145167, A145168, A145170 (A^2).