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 A190881 #11 Nov 21 2013 12:59:41 %S A190881 43,45,68,93,145,341,655,3177,3383,3424,4696,5109,5116,5183,5201,5225, %T A190881 7195,7574 %N A190881 Exception list of where A190661(n) < A104272(n) for n > 0. %C A190881 a(n) is the value of n of A190661 and A104272 at the exception. %Y A190881 Cf. A066888, A000217, A000040, A088634, A190661, A104272. %K A190881 nonn %O A190881 1,1 %A A190881 _John W. Nicholson_, May 23 2011 %E A190881 Corrected data for the changed offset and data of A190661 - _John W. Nicholson_, Nov 20 2013