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 A304534 #9 May 16 2018 20:06:45 %S A304534 0,1,3,2,5,19,4,20,10,11,13,12,15,22,14,21,41,42,44,43,46,60,45,61,51, %T A304534 52,54,53,56,63,55,62,7,8,24,25,6,81,29,88,17,9,27,26,16,18,28,23,48, %U A304534 49,65,66,47,157,70,301,58,50,68,67,57,59,69,64,236,237,239,238,241,255,240,256,246,247,249,248,251,258,250,257,277,278,280,279,282,296,281 %N A304534 Inverse of A304533. %H A304534 Antti Karttunen, <a href="/A304534/b304534.txt">Table of n, a(n) for n = 0..10116</a> %H A304534 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A304534 For all n >= 0, a(A304533(n)) = n. %F A304534 a(n) = A304532(A052330(n))-1. [This formula works if A304531 and thus A304533 are indeed permutations, containing all natural numbers.] %Y A304534 Cf. A304533 (inverse). %Y A304534 Cf. A052330, A304531, A304532. %K A304534 nonn %O A304534 0,3 %A A304534 _Antti Karttunen_, May 14 2018