A295460 a(n) = (30*n)!*(3*n)!*(2*n)!/((15*n)!*(10*n)!*(6*n)!*(4*n)!).

1, 38818159380, 11536562100925275834420, 3989159479106945583885404912116080, 1465906104045866242659659916354251554712039220, 556781461408491354853035878570347481762539032055736771880, 215922525116262430363343223480137348951795607610774441624359247484400

Offset

0,2

Links

Table of n, a(n) for n=0..6.

Formula

G.f.: hypergeom([1/30, 7/30, 11/30, 13/30, 17/30, 19/30, 23/30, 29/30], [1/5, 1/4, 2/5, 1/2, 3/5, 3/4, 4/5], 425152800000*x).

Crossrefs

Cf. A295431.

Sequence in context: A139780 A234072 A112446 * A306430 A216018 A256842

Adjacent sequences: A295457 A295458 A295459 * A295461 A295462 A295463

Keyword

nonn

Author

Gheorghe Coserea, Nov 28 2017

Status

approved