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 A380302 #10 Feb 03 2025 23:09:39
%S A380302 60,210,504,1716,2730,5814,7980,13800,26970,32736,54834,74046,85140,
%T A380302 110544,157410,215940,238266,314364,373176,405150,511920,592620,
%U A380302 728910,941094,1061106,1124760,1259604,1330890,1481430,2097024,2299836,2627934,2743860,3374850,3511656,3944154
%N A380302 Area of the unique primitive Pythagorean triple whose inradius is the n-th odd prime and whose short leg is an even number.
%D A380302 Miguel Ángel Pérez García-Ortega, José Manuel Sánchez Muñoz and José Miguel Blanco Casado, El Libro de las Ternas Pitagóricas, Preprint 2025.
%H A380302 Miguel-Ángel Pérez García-Ortega, <a href="/A380302/a380302.pdf">El Libro de las Ternas Pitagóricas</a>
%F A380302 a(n) = ( A367335(n,1) * A367335(n,2) )/2.
%t A380302 a = Table[Prime[n], {n, 2, 42}]; Apply[Join, Map[{# (# + 1) (# + 2)} &, a]]
%Y A380302 Cf. A367335, A380301, A377017, A378386, A378966.
%K A380302 nonn,easy
%O A380302 0,1
%A A380302 _Miguel-Ángel Pérez García-Ortega_, Jan 19 2025