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A026666 T(n,0) + T(n,1) + ... + T(n,n), T given by A026659. 0

%I

%S 1,2,4,10,20,42,84,196,392,842,1684,3878,7756,16786,33572,76846,

%T 153692,333998,667996,1523448,3046896,6639150,13278300,30206468,

%U 60412936,131892226,263784452,598952096,1197904192,2619074230

%N T(n,0) + T(n,1) + ... + T(n,n), T given by A026659.

%K nonn

%O 0,2

%A _Clark Kimberling_

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Last modified October 7 10:36 EDT 2022. Contains 357270 sequences. (Running on oeis4.)