A195558 Hypotenuses of primitive Pythagorean triples in A195556 and A195557.

1, 13, 25, 37, 493, 949, 1405, 18721, 36037, 53353, 710905, 1368457, 2026009, 26995669, 51965329, 76934989, 1025124517, 1973314045, 2921503573, 38927735977, 74933968381, 110940200785, 1478228842609, 2845517484433, 4212806126257

Offset: 1

Author

Clark Kimberling, Sep 21 2011

Keywords

• nonn

Comments

See A195500 for discussion and list of related sequences; see A195556 for Mathematica program.

Crossrefs

Cf. A195500, A195556, A195557.

Formula

Empirical g.f.: -x*(x^5+x^4+x^3-25*x^2-13*x-1)/(x^6-38*x^3+1). - Colin Barker, Jun 04 2015