%I #9 Oct 21 2019 02:10:52
%S 1,2,11,52,243,1252,5773,30118,138709,725582,3341873,17491838,
%T 80576661,421772338,1943163731,10170325444,46860603595,245231971772,
%U 1130003805543,5912852116740,27247159299515,142559083218360,656953537723871,3436953931249440,15838895888720931,82858490576755452
%N Self-convolution of array T given by A026703.
%K nonn
%O 0,2
%A _Clark Kimberling_
%E More terms from _Sean A. Irvine_, Oct 21 2019