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 A110133 #14 Nov 21 2014 02:19:19 %S A110133 3,4,7,8,9,11,16,19,23,27,31,32,43,47,49,59,64,67,71,79,81,83,103,107, %T A110133 121,127,128,131,139,151,163,167,179,191,199,211,223,227,239,243,251, %U A110133 256,263,271,283,307,311,331,343,347,359,361,367,379,383,419,431,439 %N A110133 Numbers which are the sides that belong to only one primitive Pythagorean triangle. %C A110133 Powers of 2 starting with 2^2=4 and powers of primes of form 4k+3; none is a hypotenuse. - _Ray Chandler_, Jul 21 2005 %C A110133 Along with 2, the natural numbers that are Gaussian prime powers. _Morgan L. Owens_, Nov 21 2014 %Y A110133 Cf. A024357, A024363, A110134, A002145 %K A110133 nonn %O A110133 1,1 %A A110133 _Lekraj Beedassy_, Jul 13 2005 %E A110133 Extended by _Ray Chandler_, Jul 21 2005