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 A375759 #7 Aug 28 2024 00:54:42 %S A375759 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,30,21,100,22,50, %T A375759 23,31,24,101,25,102,26,32,27,51,28,103,29,33,40,104,34,105,41,35,106, %U A375759 107,36,70,52,37,42,108,38,53,43,39,109,110,44,111,112,71,45 %N A375759 Inverse permutation to A375758. %C A375759 Also, lexicographically earliest sequence of distinct positive integers such %C A375759 that for any n > 0, the initial digit of a(n) divides n. %H A375759 Rémy Sigrist, <a href="/A375759/b375759.txt">Table of n, a(n) for n = 1..10000</a> %H A375759 Rémy Sigrist, <a href="/A375759/a375759.gp.txt">PARI program</a> %H A375759 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A375759 A375758(42) = 52, so a(52) = 42. %o A375759 (PARI) \\ See Links section. %Y A375759 Cf. A375758. %K A375759 nonn,base %O A375759 1,2 %A A375759 _Rémy Sigrist_, Aug 27 2024