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 A276944 #6 Sep 24 2016 10:48:34 %S A276944 1,3,2,4,7,6,11,5,16,22,29,8,37,12,46,56,67,79,92,106,121,137,154,172, %T A276944 191,211,232,254,277,10,301,17,326,352,379,9,407,23,436,466,497,30, %U A276944 529,38,562,596,631,667,704,742,781,821,862,904,947,991,1036,1082,1129,13,1177,47,1226,1276,1327,18,1379,57,1432,1486,1541,68,1597,80,1654 %N A276944 Inverse permutation to A276943. %H A276944 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %H A276944 <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a> %Y A276944 Inverse: A276943. %Y A276944 Differs from analogous A276954 for the first time at n=24, where a(24)=172, while A276954(24)=10. %K A276944 nonn,base %O A276944 1,2 %A A276944 _Antti Karttunen_, Sep 24 2016