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A213435
G.f. A(x) = 1 / (1 - a(0)*x / (1 - a(1)*x / (1 - a(2)*x / ...))).
3
1, 1, 2, 6, 32, 620, 259960, 62059718088, 3840971361624607057216, 14752998887519276350335088653216965113845136
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OFFSET
0,3
LINKS
Vaclav Kotesovec,
Table of n, a(n) for n = 0..13
EXAMPLE
1 + x + 2*x^2 + 6*x^3 + 32*x^4 + 620*x^5 + 259960*x^6 + 62059718088*x^7 + ...
PROG
(PARI) {a(n) = local(A, y='y); if( n<0, 0, A = y; for( k=0, n, A = subst( A, y, 1 / (1 - x*y* subst( polcoeff( A + x*O(x^k), k), y, 1)))); simplify( polcoeff( A + x*O(x^n), n)))}
CROSSREFS
Sequence in context:
A332537
A118077
A013976
*
A083666
A083126
A098960
Adjacent sequences:
A213432
A213433
A213434
*
A213436
A213437
A213438
KEYWORD
nonn
AUTHOR
Michael Somos
, Jun 11 2012
STATUS
approved
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Last modified May 2 18:24 EDT 2024. Contains 372203 sequences. (Running on oeis4.)