This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A059726 #8 Apr 11 2023 13:30:37 %S A059726 1,1,3,13,69,457,3579,32521,335853,3888823,49902045,703123621, %T A059726 10793341131,179315984983,3205886624445,61375996359973, %U A059726 1252826360392317,27162281897430607,623375610559904343,15098095476369328345,384854289897145441635,10299091666341922887571 %N A059726 Row sums of A059720. %C A059726 I would very much like to find a formula for this. - _N. J. A. Sloane_ %Y A059726 Cf. A059720. %K A059726 nonn %O A059726 0,3 %A A059726 _N. J. A. Sloane_, Feb 09 2001 %E A059726 More terms from _Sean A. Irvine_, Oct 04 2022