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Sum{T(n,k)}, k = 0,1,...,n, where T is the array defined in A024996.
1

%I #4 Mar 30 2012 18:56:04

%S 1,2,4,7,22,64,191,567,1689,5033,15013,44809,133816,399802,1194949,

%T 3572693,10684758,31962456,95633229,286193409,856610214,2564317356,

%U 7677475521,22988860305,68843627049,206183053485,617563017927,1849887488987

%N Sum{T(n,k)}, k = 0,1,...,n, where T is the array defined in A024996.

%Y First differences of A027914.

%K nonn

%O 0,2

%A _Clark Kimberling_