A295452 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

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).

CROSSREFS

Cf. A295431.

Sequence in context: A317796 A145412 A156032 * A330906 A003799 A003930

Adjacent sequences: A295449 A295450 A295451 * A295453 A295454 A295455

KEYWORD

nonn

AUTHOR

Gheorghe Coserea, Nov 27 2017

STATUS

approved