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 A376211 #5 Sep 22 2024 15:20:58
%S A376211 1,3,6,10,15,21,22,24,28,36,37,39,45,46,48,55,58,66,67,69,78,79,84,88,
%T A376211 91,94,97,105,108,115,120,130,135,136,139,142,153,154,163,168,171,172,
%U A376211 177,190,192,193,199,205,210,213,220,231,232,234,237,238,252,253,267
%N A376211 Numbers k for which among all possible Pythagorean triangles with the hypotenuse 4*k+1, the minimum of the lengths of the shorter legs is odd.
%e A376211 See A376210.
%o A376211 (PARI) \\ uses function is_a376210_1 from A376210
%o A376211 is_a376210_1(n,1)
%Y A376211 ({A087938}-1)/4 is a subsequence.
%Y A376211 A094178 \ A376210.
%Y A376211 Cf. A375750, A376208.
%K A376211 nonn
%O A376211 1,2
%A A376211 _Hugo Pfoertner_, Sep 21 2024