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A071738 Expansion of (1+x^3*C^4)*C, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108. 0
1, 1, 2, 6, 19, 62, 207, 704, 2431, 8502, 30056, 107236, 385662, 1396652, 5088865, 18642420, 68624295, 253706790, 941630580, 3507232740, 13105289370, 49114150020, 184560753390, 695267483664, 2625197720454, 9933364416572 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..25.

CROSSREFS

Essentially the same as A026012.

Sequence in context: A033565 A094831 A033193 * A026012 A191993 A120900

Adjacent sequences:  A071735 A071736 A071737 * A071739 A071740 A071741

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 06 2002

STATUS

approved

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Last modified October 24 08:45 EDT 2021. Contains 348220 sequences. (Running on oeis4.)