Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #8 Apr 11 2023 13:30:37
%S 1,1,3,13,69,457,3579,32521,335853,3888823,49902045,703123621,
%T 10793341131,179315984983,3205886624445,61375996359973,
%U 1252826360392317,27162281897430607,623375610559904343,15098095476369328345,384854289897145441635,10299091666341922887571
%N Row sums of A059720.
%C I would very much like to find a formula for this. - _N. J. A. Sloane_
%Y Cf. A059720.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, Feb 09 2001
%E More terms from _Sean A. Irvine_, Oct 04 2022