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 A062860 #12 Oct 20 2019 04:13:15 %S A062860 1,2,3,5,10,15,30,55,105,165,330,660,1155,2145,4290,7755,15015,30030, %T A062860 54285,100815,201630,403260,705705,1411410,2822820,5645640,11392095, %U A062860 20465445,40930890,79744665,159489330,318978660,637957320,1321483020 %N A062860 Smallest j with n nodes in its riff (rooted index-functional forest). %C A062860 Greatest j with n nodes in its riff is given by A014221(n+1). %H A062860 J. Awbrey, <a href="https://oeis.org/wiki/Riffs_and_Rotes">Riffs and Rotes</a> %Y A062860 Cf. A014221, A061396, A062504, A062537, A111800. %K A062860 nonn %O A062860 0,2 %A A062860 _Jon Awbrey_, Jun 25 2001 %E A062860 More terms from _David W. Wilson_, Jun 26 2001