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 A195921 #6 Mar 30 2012 18:57:48 %S A195921 2,3,5,7,9,10,11,13,15,15,15,16,17,18,19,22,23,25,26,27,29,30,32,32, %T A195921 33,34,35,37,38,39,41,42,45,46,48,48,48,48,51,53,54,55,57,57,61,62,63, %U A195921 64,64,65,66,69,69,73,75,78,78,80,80,80,86,87,90,90,93,94,95,96 %N A195921 Positive integers c for which there is a primitive (-3/2)-Pythagorean triple (a,b,c) satisfying a<=b. %C A195921 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %e A195921 Primitive (-3/2)-Pythagorean triples %e A195921 (c^2=a^2+b^2+k*a*b, where k=-3/2): %e A195921 2,3,2 %e A195921 3,10,8 %e A195921 5,6,4 %e A195921 7,48,43 %e A195921 9,16,11 %e A195921 10,51,44 %e A195921 11,114,106 %e A195921 13,30,22 %e A195921 15,16,11 %e A195921 15,32,23 %t A195921 (See A195918.) %Y A195921 Cf. A195770, A195918, A195922, A195923. %K A195921 nonn %O A195921 1,1 %A A195921 _Clark Kimberling_, Sep 26 2011