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A072598
a(n)= 3^(4*n-4)* Sum_{k>=0} ( Gamma(n+k/3+1/3) / Gamma(4/3+k/3) ) * (Gamma(n+k/3+2/3) / Gamma(5/3+k/3) ) * (Gamma(n+k/3+1) / Gamma(2+k/3) ) * Gamma(n+k/3+4/3) / ( Gamma(7/3+k/3) * k! *exp(1)).
0
1, 1961, 22982765, 897960515649, 87104111341922641, 17553971396873140572281, 6522485663882405640795371581, 4101670732571144797304609148820545, 4092893743093429344164150395340192148609, 6162975970715988703282664052430391759867866441
OFFSET
1,2
COMMENTS
Gamma in the definition is the standard Capital-Greek-Gamma function.
CROSSREFS
Sequence in context: A200857 A351680 A157627 * A159213 A056094 A253528
KEYWORD
nonn
AUTHOR
Karol A. Penson, Jun 23 2002
EXTENSIONS
More terms from Sean A. Irvine, Oct 13 2024
STATUS
approved