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 A195873 #5 Mar 30 2012 18:57:48 %S A195873 2,4,6,8,10,48,7,12,35,14,32,16,18,32,154,20,33,96,16,22,78,14,24,70, %T A195873 26,66,320,28,39,64,187,16,30,144,21,32,63,34,112,546,21,36,64,105, %U A195873 308,38,48,230,40,66,192,42,96,170,32,44,95,156,459,46,70,336,28 %N A195873 Positive integers b for which there is a (-1/2)-Pythagorean triple (a,b,c) satisfying a<=b. %C A195873 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A195873 (See A195872.) %Y A195873 Cf. A195770, A195872. %K A195873 nonn %O A195873 1,1 %A A195873 _Clark Kimberling_, Sep 25 2011