A295450 a(n) = (14*n)!*(6*n)!*(4*n)!/((12*n)!*(7*n)!*(3*n)!*(2*n)!).

1, 52, 6300, 867724, 126266140, 18946089552, 2899163518020, 449724340595400, 70465174099304220, 11126033860866694000, 1767446723088509218800, 282158365425331981232556, 45228300709147862285651140, 7274727731093117939040291440, 1173526754722358526308356738200, 189786287381449802019915589798224

Offset: 0

Author

Gheorghe Coserea, Nov 27 2017

Keywords

• nonn

Crossrefs

Cf. A295431.

Formula

G.f.: hypergeom([1/14, 3/14, 5/14, 1/2, 9/14, 11/14, 13/14], [1/12, 1/3, 5/12, 7/12, 2/3, 11/12], 3294172/19683*x).