A051891 Values of m, the main key or generating number for Pythagorean triangles in which S (the odd short leg) and U (the hypotenuse) are twin primes.

2, 3, 6, 10, 15, 51, 175, 261, 285, 286, 331, 546, 745, 1135, 1171, 1275, 1330, 1365, 1366, 2025, 2640, 3180, 3436, 3780, 4116, 4861, 5860, 5890, 6036, 6670, 8646, 8961, 8980, 9715, 9945, 10116, 10180, 15771, 16590, 16876, 19326, 20215, 20266, 21451

Offset: 1

Author

Stuart M. Ellerstein (ellerstein(AT)aol.com), Dec 17 1999

Keywords

• nonn

Links

• Robert Simms, Deriving Pythagorean Triples (web archive)

Crossrefs

Cf. A051892. See A051642 for the S's, A051859 for the U's and A051858 for the T's (the even long leg).

Formula

a(n) = (A051642(n) + 1) / 2. - Sean A. Irvine, Oct 12 2021

Extensions

More terms from Joshua Zucker, May 12 2006