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 A115172 #3 Mar 30 2012 17:40:34 %S A115172 926617,2892173,9274792,10991572,11316512,19778548,21269851,23134703, %T A115172 23742454,29833549,30743348,30758242,30829335,35596922,35739680, %U A115172 39313201,40547231,52621288,62966319,62968936,66217600,78581688 %N A115172 Positive numbers that are not the sum of two triangular numbers and a positive Fibonacci number. %C A115172 There are 319 such numbers up to 2*10^9, the last one in this range being 1988099881. %Y A115172 Cf. A115171, A115173, A115174, A115175, A115176, A115177. %K A115172 nonn %O A115172 1,1 %A A115172 _Giovanni Resta_, Jan 15 2006