A009185 - OEIS

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

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

LINKS

Table of n, a(n) for n=1..57.

CROSSREFS

Cf. A009012, A009188, A020883, A033942.

Sequence in context: A172415 A195556 A083547 * A102308 A354583 A103291

Adjacent sequences: A009182 A009183 A009184 * A009186 A009187 A009188

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved