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 A268713 #12 Feb 13 2016 23:18:11 %S A268713 0,1,2,4,8,13,14,44,50,84,134,220,234,253,254,764,1274,2294,3822,8414, %T A268713 13106,21742,30581,30582,34678,56796,60094,65020,65262,65533,65534, %U A268713 196604,327674,589814,983022 %N A268713 Positions of records in A268672. %C A268713 a(n) seems also to be the first position k in A268672 where A268672(k) = n (when a(0) = 0, which is the reason the starting offset is 0 instead of 1). %o A268713 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A268713 (define A268713 (RECORD-POS 0 0 A268672)) %Y A268713 Cf. A001317, A268672. %K A268713 nonn %O A268713 0,3 %A A268713 _Antti Karttunen_, Feb 12 2016