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%I #5 Jul 03 2023 12:43:33
%S 1,6,61,1021,22801,654271,22642171,922787096,43149037646,
%T 2279170742696,134100508257596,8698551285481371,616549939781495121,
%U 47409430650407225871,3930455865337807339246,349471231024984588597871,33172028312913149756842121
%N Row sums of triangle A144342 (called S2hat(-5)).
%F a(n) = Sum_{m=1..n} A144342(n,m), n>=1.
%Y Cf. A144342.
%K nonn,easy
%O 1,2
%A _Wolfdieter Lang_, Oct 09 2008
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