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A123334 a(n)=4^n*(GAMMA(n+1/4)/GAMMA(1/4) +(n-1)!), n=1,2... 0
5, 21, 173, 2121, 34521, 700365, 17017605, 481714065, 15566262705, 565382074005, 22800157775325, 1010786809534425, 48858860891558025, 2557374374022392925, 144098786151306911925, 8696418977823430478625 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

The EXP-transform of a(n) is equal to A121631(n)

FORMULA

E.g.f. : (1-4*x)^(-1/4)-1-ln(1-4*x)

a(n)=A007696(n)+A000302(n)*A000142(n-1). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 18 2009, Jul 07 2009]

CROSSREFS

Cf. A121631.

Sequence in context: A050910 A182825 A117067 * A140196 A027160 A195963

Adjacent sequences:  A123331 A123332 A123333 * A123335 A123336 A123337

KEYWORD

nonn

AUTHOR

Karol A. Penson (penson(AT)lptl.jussieu.fr), Sep 26 2006

EXTENSIONS

Zero inserted in A-number by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 07 2009

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Last modified February 17 19:05 EST 2012. Contains 206082 sequences.