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A067308 One sixteenth of fifth column of triangle A067304. 0

%I #7 Feb 10 2014 01:21:13

%S 16,185,2181,26860,342968,4504944,60509296,827456576,11482655232,

%T 161302619392,2289365653760,32780329073664,472951175022592,

%U 6869148315201536,100352220112662528,1473672361011920896

%N One sixteenth of fifth column of triangle A067304.

%F a(n)= A067304(n+4, 4)/15 = (A067297(n+4)-sum(b(j)b(n+4-j), j=0..3))/16, n>=0, with b(n) := A064340(n).

%F G.f.: (21+70c(4*x)+93*c(4*x)^2+60*c(4*x)^3+12*c(4*x)^4)*(c(4*x)^3)/(1+c(4*x))^4, with c(x) g.f. of A000108 (Catalan).

%e 21+70*y+93*y^2+60*y^3 = p(4,y), fifth row polynomial of triangle A067329.

%K nonn,easy

%O 0,1

%A _Wolfdieter Lang_, Feb 05 2002

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)