A071737 Expansion of (1+x^3*C^3)*C^4, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.

1, 4, 14, 49, 172, 607, 2156, 7709, 27742, 100436, 365636, 1337866, 4917998, 18155165, 67280520, 250215045, 933566550, 3493585920, 13109631540, 49318717470, 185974763520, 702820113918, 2661438889896, 10097446604434

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Crossrefs

Sequence in context: A291384 A010904 A277084 * A071741 A211305 A316974

Adjacent sequences: A071734 A071735 A071736 * A071738 A071739 A071740

Keyword

nonn

Author

N. J. A. Sloane, Jun 06 2002

Status

approved