A317183 Numbers k such that k = 16*area(T)^2 for a primitive integer triangle, T.

3, 15, 35, 63, 99, 128, 135, 143, 195, 231, 255, 275, 320, 323, 351, 384, 399, 455, 483, 495, 575, 576, 663, 675, 735, 768, 783, 819, 855, 896, 899, 935, 975, 1023, 1071, 1155, 1235, 1280, 1295, 1311, 1344, 1443, 1463, 1536, 1539, 1575, 1599, 1683, 1728, 1763

Offset: 1

Author

N. J. A. Sloane, Jul 25 2018

Keywords

• nonn

Comments

A316842 lists the primitive integer triangles.

Links

• Lars Blomberg, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A316842.

Sorted and uniqued values of A317181.

Subsequence of A317182.

Extensions

Terms a(13) and beyond from Lars Blomberg, Jul 27 2018

Name edited by Peter Munn, Jul 30 2025