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 A376430 #4 Sep 23 2024 11:34:02 %S A376430 12,15,35,40,45,60,72,80,105,112,132,140,165,168,180,195,209,221,231, %T A376430 252,255,260,275,285,299,312,325,340,380,391,399,408,420,425,440,459, %U A376430 465,520,532,575,595,600,609,612,651,660,700,728,741,748,759,760,779,780,800 %N A376430 Numbers that can appear as both short and long legs of Pythagorean triangles with Pythagorean primes A002144 as hypotenuses. %C A376430 Intersection of A002365 and A002366. %e A376430 a(1) = 12, because it is the long leg in the triangle (5, 12, 13) and the short leg in (12, 35, 37); %e A376430 a(2) = 15: long leg in (8, 15, 17), short leg in (15, 112, 113). %Y A376430 Cf. A002144, A002365, A002366, A376428, A376429. %K A376430 nonn %O A376430 1,1 %A A376430 _Hugo Pfoertner_, Sep 23 2024