A295452 a(n) = (10*n)!*(6*n)!*n!/((7*n)!*(5*n)!*(3*n)!*(2*n)!).

1, 360, 426360, 583731720, 848084358264, 1272844124730360, 1949962324582133400, 3029870085304407766200, 4756833647064253405342840, 7527387071973766687474317120, 11986073514194153892621775416360, 19182204664545386655937834503826320, 30826701085749480283253960554248940440

Offset: 0

Author

Gheorghe Coserea, Nov 27 2017

Keywords

• nonn

Crossrefs

Cf. A295431.

Formula

G.f.: hypergeom([1/10, 1/6, 3/10, 1/2, 7/10, 5/6, 9/10], [1/7, 2/7, 3/7, 4/7, 5/7, 6/7], 1382400000/823543*x).