A295464 a(n) = (30*n)!*(5*n)!*(3*n)!/((15*n)!*(10*n)!*(7*n)!*(6*n)!).

1, 11090902680, 806752594470299009400, 67926864195319506846345904076280, 6070004571618493758425092821342656541250680, 560350006184720363483642231730314219687919996242332680, 52801774275140194976895125566622993449415218651496078394967387800

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], [1/7, 2/7, 3/7, 1/2, 4/7, 5/7, 6/7], 85030560000000000/823543*x).

Crossrefs

Cf. A295431.

Sequence in context: A374780 A321707 A246286 * A095426 A038453 A290390

Adjacent sequences: A295461 A295462 A295463 * A295465 A295466 A295467

Keyword

nonn

Author

Gheorghe Coserea, Nov 28 2017

Status

approved