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 A218781 #8 May 05 2014 10:16:41 %S A218781 1,2,5,12,32,92,278,877,2861,9572,32656,113164,397190,1409006,5043617, %T A218781 18194197,66075777,241385044,886422017,3270283189,12115355601, %U A218781 45052126049,168100964161,629171367473,2361546968519,8886942571534,33523357596518,126736969302857 %N A218781 A014486-indices for the compact representation of Beanstalk-tree, with the lesser numbers coming to the left hand side. %C A218781 See the comments and examples at A218780. %H A218781 Antti Karttunen, <a href="/A218781/b218781.txt">Table of n, a(n) for n = 1..128</a> %F A218781 a(n) = A080300(A218780(n)). %Y A218781 Cf. A218787, A218780, A218777, A218779. %K A218781 nonn %O A218781 1,2 %A A218781 _Antti Karttunen_, Nov 17 2012