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A295463
a(n) = (15*n)!*(7*n)!/((14*n)!*(5*n)!*(3*n)!).
1
1, 105, 29029, 9166740, 3061860165, 1055101029480, 370876177263460, 132173658552875940, 47583151292491193925, 17263325497497942304176, 6301638858548635346648904, 2311724488328238270596515080, 851528189436978072303333019620, 314744785754005167603848040595140
OFFSET
0,2
FORMULA
G.f.: hypergeom([1/15, 2/15, 4/15, 7/15, 8/15, 11/15, 13/15, 14/15], [1/14, 3/14, 5/14, 1/2, 9/14, 11/14, 13/14], 5189853515625/13492928512*x).
CROSSREFS
Cf. A295431.
Sequence in context: A001546 A111647 A368513 * A339847 A145621 A167779
KEYWORD
nonn
AUTHOR
Gheorghe Coserea, Nov 28 2017
STATUS
approved