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 A038560 #19 Feb 22 2020 10:53:51 %S A038560 2,3,5,13,39,135,527,2277,10749,54905,301111,1761803 %N A038560 Binomial recurrence coefficients. %C A038560 Apparently defined by a(n) = A032347(n) + A038559(n). - _R. J. Mathar_, Nov 24 2013 %C A038560 Apparently the binomial transform of the sequence [2,5,13,39,...] is the same sequence without the "3". - _R. J. Mathar_, May 28 2019 %D A038560 H. W. Gould, A linear binomial recurrence and the Bell numbers and polynomials, preprint, 1998. %H A038560 H. W. Gould & J. Quaintance, <a href="http://www.doiserbia.nb.rs/img/doi/1452-8630/2007/1452-86300702371G.pdf">A linear binomial recurrence and the Bell numbers and polynomials</a>, Appl. Anal. Disc. Math. 1 (2007) 371-385 %Y A038560 Related to A000110, A040027 and A038559. %K A038560 nonn,more %O A038560 0,1 %A A038560 _Henry Gould_