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A145160 G.f. A(x) satisfies A(x/A(x)^3) = 1/(1-x). 5
1, 1, 4, 31, 347, 4860, 79174, 1440837, 28584939, 608533714, 13751688892, 327333165775, 8160149459870, 212121519165566, 5730205766494409, 160425928432680795, 4644491031188023566, 138792548776938444503 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
FORMULA
G.f. satisfies: 1 - 1/A(x) = x*A( 1 - 1/A(x) )^3.
Self-convolution cube yields A145161.
PROG
(PARI) {a(n)=local(A=1+x+x*O(x^n)); for(n=0, n, B=serreverse(x/A^3); A=1/(1-B)); polcoeff(A, n)}
CROSSREFS
Sequence in context: A141005 A122400 A107725 * A129271 A136728 A321031
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 03 2008
STATUS
approved

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)