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Self-convolution of array T given by A026692.
0

%I #9 Oct 21 2019 02:09:07

%S 1,2,6,20,98,502,2126,8382,39624,203562,922944,3886840,18431462,

%T 93930404,435553556,1893481706,9028569112,45794495192,214665970468,

%U 950426429104,4550599324520,23012148707800,108579819367298,486522336711212,2336288831626038,11788749319436714

%N Self-convolution of array T given by A026692.

%K nonn

%O 0,2

%A _Clark Kimberling_

%E More terms from _Sean A. Irvine_, Oct 21 2019