A140384 Consecutive triples (x=(p^2-1)/2,2*p,y=z=(p^2+1)/2), p prime, representing isosceles triangles with sides (x,y,z).

4, 6, 5, 12, 10, 13, 24, 14, 25, 60, 22, 61, 84, 26, 85, 144, 34, 145, 180, 38, 181, 264, 46, 265, 420, 58, 421, 480, 62, 481, 684, 74, 685, 840, 82, 841, 924, 86, 925, 1104, 94, 1105, 1404, 106, 1405, 1740, 118, 1741, 1860, 122, 1861, 2244, 134, 2245, 2520, 142

Offset: 1

Author

Juri-Stepan Gerasimov, Jun 13 2008

Keywords

• nonn
• less

Comments

Or: Triples A084921(i), A100484(i), A066885(i), i=2,3... in compound order.

Extensions

Edited by R. J. Mathar, Jun 16 2008 and Jun 17 2008