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A067326 Fifth column of triangle A067323. 1

%I #4 Mar 31 2012 13:20:07

%S 14,56,202,715,2529,8986,32123,115556,418200,1521976,5567551,20462525,

%T 75528895,279874350,1040790135,3883140600,14531382060,54529456320,

%U 205146226200,773608833894,2923686178098,11071970477876

%N Fifth column of triangle A067323.

%C Also fifth diagonal of triangle A028364.

%F a(n)= A067323(n+4, 4)= C(n+5)-sum(C(k)*C(n+4-k), k=0..3), C(n) := A000108(n) (Catalan).

%F G.f.: (c(x)^3)*(5+5*c(x)+3*c(x)^2+c(x)^3), with c(x) g.f. of A000108 (Catalan).

%Y Cf. A067325 (fourth column).

%K nonn,easy

%O 0,1

%A _Wolfdieter Lang_, Feb 05 2002

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Last modified February 23 20:31 EST 2024. Contains 370288 sequences. (Running on oeis4.)