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A145169
G.f. A(x) satisfies A(x/A(x)^2) = 1/(1-x)^3.
4
1, 3, 24, 361, 7851, 214245, 6815986, 242659191, 9431036685, 393771017068, 17469277612998, 817033067908275, 40050828368606412, 2048642917085523633, 108968676087557745858, 6010617981960195923285, 343038687551360605111371
OFFSET
0,2
LINKS
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).
Sequence in context: A375800 A332975 A010791 * A193210 A065761 A374021
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 03 2008
STATUS
approved