%I #5 Jul 03 2023 10:06:08
%S 1,6,36,271,2101,19296,185946,2029621,23654671,303054846,4153493496,
%T 61501843771,969988075021,16326593796396,291081828746646,
%U 5490558646391521,109092080140450771,2278805715594223146,49897959213869259396,1143087784199443461271
%N Row sums of triangle A144891 (S1hat(5)).
%F a(n) = Sum_{m=1..n} A144891(n,m), n>=1.
%Y Cf. A144891.
%K nonn,easy
%O 0,2
%A _Wolfdieter Lang_, Oct 09 2008
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