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%I #5 Nov 28 2017 14:09:06
%S 1,1365,6531525,36155455908,212422672667205,1289347174337943240,
%T 7988578284829726217700,50202452144162092092126900,
%U 318773474802860214828983563845,2040213003374489097738224937634800,13139471029644309699515037254016803400,85049362365373576290876509860293890825640
%N a(n) = (15*n)!*(6*n)!*n!/((12*n)!*(5*n)!*(3*n)!*(2*n)!).
%F G.f.: hypergeom([1/15, 2/15, 4/15, 7/15, 8/15, 11/15, 13/15, 14/15], [1/12, 1/4, 5/12, 1/2, 7/12, 3/4, 11/12], 7119140625/1048576*x).
%Y Cf. A295431.
%K nonn
%O 0,2
%A _Gheorghe Coserea_, Nov 28 2017
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