A144286 - OEIS

%I #5 Jul 03 2023 14:52:53

%S 1,5,41,561,10281,243481,6965401,235103417,9112789817,399330154617,

%T 19502558109177,1050527843743993,61855087724349433,

%U 3952225158444979193,272326955744655069689,20128716335079745234425,1588573078022351774367225,133323969310853649963402745

%N Row sums of triangle A144285 (called S2hat(-4)).

%F a(n) = Sum_{m=1..n} A144285(n,m), n>=1.

%Y Cf. A144285.

%K nonn,easy

%O 1,2

%A _Wolfdieter Lang_, Oct 09 2008