OFFSET
0,2
FORMULA
G.f.: hypergeom([1/9, 2/9, 4/9, 5/9, 7/9, 8/9], [1/5, 2/5, 1/2, 3/5, 4/5], 14348907/12500*x).
MATHEMATICA
f[n_] := (9n)! n!/((5n)! (3n)! (2n)!); Array[f, 13, 0] (* or *) CoefficientList[ Series[ HypergeometricPFQ[{1/9, 2/9, 4/9, 5/9, 7/9, 8/9}, {1/5, 2/5, 1/2, 3/5, 4/5}, 14348907/12500 x], {x, 0, 12}], x] (* Robert G. Wilson v, Nov 23 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Gheorghe Coserea, Nov 23 2017
STATUS
approved