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a(n)=Sum{T(n,j): j=1,2,...,n}, array T given by A048225.
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%I #5 Mar 30 2012 18:56:55

%S 3,5,11,31,76,136,220,324,459,639,870,1146,1523,1971,2481,3073,3770,

%T 4544,5399,6339,7347,8513,9801,11169,12669,14307,16062,17994,20082,

%U 22302,24627,27059,29699,32453,35358,38454,41673,45207

%N a(n)=Sum{T(n,j): j=1,2,...,n}, array T given by A048225.

%K nonn

%O 1,1

%A _Clark Kimberling_