A140392 Triples of height (a prime p), base length x and side length y=z of isosceles triangles.

3, 8, 5, 5, 24, 13, 7, 48, 25, 11, 120, 61, 13, 168, 85, 17, 288, 145, 19, 360, 181, 23, 528, 265, 29, 840, 421, 31, 960, 481, 37, 1368, 685, 41, 1680, 841, 43, 1848, 925, 47, 2208, 1105, 53, 2808, 1405, 59, 3480, 1741, 61, 3720, 1861, 67, 4488, 2245, 71, 5040, 2521

Offset

1,1

Comments

Or: consecutive triples of p=A000040(j), x=2*A084920(j), y=z= A066885(j), j>=2.

The area of the triangles is half the product of height and base length, p*x/2=A127918(j).

Links

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

Example

Contains (p,x,y) = (3,8,5), (5,24,13), (7,48,25), (11,120,61), ...

Crossrefs

Sequence in context: A113813 A110944 A166494 * A140385 A078361 A193014

Adjacent sequences: A140389 A140390 A140391 * A140393 A140394 A140395

Keyword

nonn,less

Author

Juri-Stepan Gerasimov, Jun 13 2008

Extensions

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

Status

approved