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%I #26 Jan 08 2018 01:36:26
%S 0,1,5,22,88,345
%N Row sums of triangle A262294.
%H P. J. Cameron, M. Gadouleau, J. D. Mitchell, Y. Peresse, <a href="http://arxiv.org/abs/1501.06394">Chains of subsemigroups</a>, arXiv preprint arXiv:1501.06394 [math.GR], 2015. See Table 2.
%F a(n) = Sum_{k=1..(n-1)} A262294(n,k). - _Altug Alkan_, Jan 07 2015
%e a(6) = A262294(6,1) + A262294(6,2) + A262294(6,3) + A262294(6,4) + A262294(6,5) = 0 + 12 + 40 + 30 + 6 = 88. - _Altug Alkan_, Jan 05 2016
%Y Cf. A262294.
%K nonn,more
%O 2,3
%A _N. J. A. Sloane_, Sep 21 2015
%E New name from _Altug Alkan_, Jan 05 2016
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