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 A214453 #19 Jul 19 2012 11:09:28 %S A214453 15,75,85,95,299,375,377,425,465,475,485,747,901,1057,1241,1271,1875, %T A214453 2125,2375,2425,2475,2485,2495,2597,3473,3955,4015,4531,5055,6877, %U A214453 9039,9375,10519,10553,10625,10933,11397,11875,12125,12375,12425,12475,14415,14659,15763,16485,17869 %N A214453 Odd indices n for which A046825(n) is not larger than A046825(n-1). %C A214453 Most terms of A214440 are even, which makes it interesting to look at the subsequence of odd terms. %o A214453 (PARI) t=S=1; for(n=0,99999, t+0>=(t=numerator(S)) & bittest(n,0) & print1(n,","); S=S/2/(n+1)*(n+2)+1) %Y A214453 See A214432 for the indices where A046825 sets a new record. %K A214453 nonn %O A214453 1,1 %A A214453 _M. F. Hasler_, Jul 19 2012