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 A293297 #6 Oct 11 2017 10:24:02 %S A293297 1,2,5,13,37,106,331,981,3473,9010,49481,-7435,1744909,-13392950, %T A293297 186659383,-2369054219,33839782689,-510323573086,8221794054733, %U A293297 -140449867800547,2538204766893461,-48376680944601302,969915363800997571,-20407191628360339979 %N A293297 Row sums of A293472. %F A293297 a(n) = p(n, 1) where p(n, t) is the n-th derivative of x^x with t = log(x), evaluated at x = 1. %e A293297 Since p(3, t) = 3 + 6*t + 3*t^2 + t^3 (compare the example in A293472), a(3) = p(3, 1) = 13. %Y A293297 Cf. A293472. %K A293297 sign %O A293297 0,2 %A A293297 _Peter Luschny_, Oct 10 2017