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

1,1

Comments

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

Links

Table of n, a(n) for n=1..56.

Crossrefs

Sequence in context: A347092 A012891 A013074 * A274929 A301915 A009456

Adjacent sequences: A140381 A140382 A140383 * A140385 A140386 A140387

Keyword

nonn,less

Author

Juri-Stepan Gerasimov, Jun 13 2008

Extensions

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

Status

approved