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 A115248 #4 Aug 12 2015 00:39:57 %S A115248 2,5,9,11,12,14,17,19,24,29,30,32,35,39,42,44,46,50,51,53,54,56,57,65, %T A115248 71,72,74,75,77,80,82,84,95,96,100,101,104,107,109,110,116,117,119, %U A115248 122,126,127,128,129,131,137,141,144,149,150,152,154,156,161,162,165,170 %N A115248 Values such that A115247(a(n))=1. Values such that A001935(a(n))==2 (mod 4). %C A115248 All values are the sum of a triangular number A000217 and a square A000290. %H A115248 K. Alladi, <a href="http://www.ams.org/tran/1997-349-12/S0002-9947-97-01831-X/S0002-9947-97-01831-X.pdf">Partition Identities Involving Gaps and Weights</a>, Transactions of the American Mathematical Society, Vol. 349, No. 12, Dec 1997, pp. 5001-5019. %Y A115248 Cf. A005123, A115249. %K A115248 nonn %O A115248 0,1 %A A115248 _Christian G. Bower_, Jan 17 2006