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A147621 The 3rd Witt transform of A000292. 1
0, 0, 0, 0, 4, 26, 120, 455, 1456, 4122, 10608, 25194, 55980, 117572, 235144, 450681, 832048, 1485800, 2575368, 4345965, 7158060, 11532402, 18209100, 28224105, 43008120, 64512240, 95365920, 139075245, 200268432, 284997384, 401107356 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

The 2nd Witt transform is essentially in A032094.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Pieter Moree, The formal series Witt transform, Discr. Math. no. 295 vol. 1-3 (2005) 143-160.

FORMULA

G.f.: x^4(2x^2-x+2)(2x^4-2x^3+9x^2-2x+2)/((1-x)^12*(1+x+x^2)^4).

MATHEMATICA

CoefficientList[Series[x^4(2*x^2 - x + 2)(2*x^4 - 2*x^3 + 9*x^2 - 2*x+2)/((1-x)^12 * (1 + x + x^2)^4), {x, 0, 40}],  x] (* Vincenzo Librandi  Dec 13 2012 *)

CROSSREFS

Sequence in context: A222663 A267675 A140804 * A246854 A267847 A211166

Adjacent sequences:  A147618 A147619 A147620 * A147622 A147623 A147624

KEYWORD

easy,nonn

AUTHOR

R. J. Mathar, Nov 08 2008

STATUS

approved

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Last modified April 18 08:37 EDT 2019. Contains 322209 sequences. (Running on oeis4.)