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 A275809 #11 Aug 11 2016 23:46:44 %S A275809 0,5,14,19,22,54,59,74,84,89,93,97,100,111,114,119,264,269,278,283, %T A275809 286,366,371,408,413,422,427,430,440,463,466,482,492,497,501,536,552, %U A275809 557,566,571,574,579,589,592,596,601,604,615,618,623,655,658,675,685,688,692,696,701,710,715,718,1560,1565,1574,1579,1582,1614,1619,1634,1644 %N A275809 Indices of zeros in A275808. %C A275809 Indexing begins from zero, because a(0) = 0 is a special case in this sequence. %C A275809 Terms A009445(n)-1, [0, 5, 119, 5039, 362879, 39916799, ...] form a subsequence, and also the terms of A010050(n)-2, [0, 22, 718, 40318, 3628798, ...] form a subsequence. %H A275809 Antti Karttunen, <a href="/A275809/b275809.txt">Table of n, a(n) for n = 0..1384</a> %H A275809 <a href="/index/Fa#facbase">Index entries for sequences related to factorial base representation</a> %o A275809 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A275809 (define A275809 (ZERO-POS 0 0 A275808)) %Y A275809 Cf. A275736, A275808. %Y A275809 Cf. A275810 (first differences). %Y A275809 Subsequence of A275813 and of A275805 (after the initial 0). %Y A275809 Cf. also A009445, A010050. %K A275809 nonn,base %O A275809 0,2 %A A275809 _Antti Karttunen_, Aug 09 2016