%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