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 A249433 #15 Nov 02 2014 18:14:56 %S A249433 3,5,7,8,9,11,13,14,15,17,19,20,21,23,24,25,26,27,29,31,32,33,34,37, %T A249433 38,41,43,44,45,47,48,49,50,51,53,54,55,56,57,59,61,63,64,65,67,68,69, %U A249433 71,73,74,75,76,77,80,81,84,85,86,87,90,91,92,93,94,95,97,98,99,101,103,105,109,110,111,113,114,115,116,117,118,119,120,121,122,123,124,125,127,128 %N A249433 Integers n such that n! does not divide the product of elements on row n of Pascal's triangle. %C A249433 Integers n such that A249151(n) < n. %C A249433 Equally: Integers n such that A249431(n) is negative. %H A249433 Antti Karttunen, <a href="/A249433/b249433.txt">Table of n, a(n) for n = 1..2676</a> %e A249433 See the examples at A249434. %o A249433 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A249433 (define A249433 (MATCHING-POS 1 0 (COMPOSE negative? A249431))) %Y A249433 Complement: A249434. %Y A249433 Subsequences: A000225, A024023, A024049, etc., (after their two initial terms, i.e. A249435 without its initial zero is also a subsequence), A249424, A249436. %Y A249433 Cf. A000142, A001142, A007318, A249151, A249431. %K A249433 nonn %O A249433 1,1 %A A249433 _Antti Karttunen_, Nov 02 2014