A009185 Long leg of more than one Pythagorean triangle.

12, 24, 36, 40, 45, 48, 56, 60, 63, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 132, 135, 140, 144, 156, 160, 165, 168, 176, 180, 189, 192, 195, 200, 204, 208, 210, 216, 220, 224, 225, 228, 231, 240, 252, 255, 260, 264, 270, 272, 273, 275, 276, 280, 285, 288, 300, 304

Offset: 1

Author

David W. Wilson

Keywords

• nonn

Comments

If n is in the sequence, k*n is in the sequence for all k > 1. So sequence is union of arithmetic progressions such as numbers of the form 12*k, 40*k, 45*k, ... - Altug Alkan, Nov 30 2015

Numbers appearing more than once in A009012. - Sean A. Irvine, Apr 20 2018

Crossrefs

Cf. A009012, A009188, A020883, A033942.