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A145159
G.f. A(x) satisfies A(x/A(x)) = 1/(1-x)^2.
1
1, 2, 7, 38, 283, 2624, 28408, 344972, 4580833, 65410070, 992850781, 15888876224, 266464473274, 4661494891166, 84761554257517, 1597453996121132, 31132664696108551, 626239933178389916, 12981131500452667888
OFFSET
0,2
FORMULA
Self-convolution of A145158.
PROG
(PARI) {a(n)=local(A=1+x+x*O(x^n)); for(n=0, n, B=serreverse(x/A); A=1/(1-B)^2); polcoeff(A, n)}
CROSSREFS
Cf. A145158.
Sequence in context: A337026 A088792 A114160 * A317985 A084552 A094664
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 03 2008
STATUS
approved