%I A038121
%S A038121 1,28,630,13860,315315,7567560,192972780,5237832600,151242416325,
%T A038121 4638100767300,150738274937250,5179915266025500,187771928393424375,
%U A038121 7164221267933730000,287080580807915895000,12057384393932467590000
%N A038121 E.g.f.: (1+15*x+45/2*x^2+5/2*x^3)/(1-2*x)^(13/2).
%F A038121 (2n+6)!/ [6!*n!*2^n ].
%Y A038121 Cf. A001147, A001879, A000457, A001880, A001881.
%Y A038121 Column 6 of triangle A001497.
%Y A038121 Sequence in context: A053110 A004371 A089908 this_sequence A070310 A160141 
               A004293
%Y A038121 Adjacent sequences: A038118 A038119 A038120 this_sequence A038122 A038123 
               A038124
%K A038121 nonn
%O A038121 0,2
%A A038121 Leonard Smiley (smiley(AT)math.uaa.alaska.edu)