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 A380183 #7 Jan 17 2025 16:30:45 %S A380183 0,1,2,3,4,5,6,8,7,9,10,11,12,15,16,13,17,14,18,19,20,21,22,24,30,32, %T A380183 23,31,25,33,26,34,27,28,29,35,36,37,38,40,39,41,42,43,44,47,48,59,60, %U A380183 63,64,45,49,61,65,46,62,50,66,51,52,67,68,53,69,54,56,55 %N A380183 Distinct nonnegative values of A380123, in order of appearance and with offset 0. %C A380183 This sequence is a permutation of the nonnegative integers with inverse A380184. %H A380183 Rémy Sigrist, <a href="/A380183/b380183.txt">Table of n, a(n) for n = 0..8874</a> %H A380183 Rémy Sigrist, <a href="/A380183/a380183.gp.txt">PARI program</a> %H A380183 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A380183 Sequence A380123 begins: 0, 0, 1, 0, 2, -1, 0, 3, 4, 0, 4, 0, 1, 4, 5, -2, 0, 6, 8. %e A380183 The present sequence begins: 0, 1, 2, 3, 4, 5, 6, 8. %o A380183 (PARI) \\ See Links section. %Y A380183 Cf. A380123, A380184 (inverse), A380185. %K A380183 nonn,base %O A380183 0,3 %A A380183 _Rémy Sigrist_, Jan 15 2025