A195567 Hypotenuses of primitive Pythagorean triples in A195565 and A195566.

5, 5, 325, 449, 3649, 20165, 20485, 1331845, 1840001, 14953601, 82636165, 83947525, 5457900485, 7540323649, 61279853249, 338642984005, 344016936965, 22366474855685, 30900244473601, 251124823660801, 1387758865816325, 1409781323735045

Offset

1,1

Comments

See A195500 for discussion and list of related sequences; see A195565 for Mathematica program.

Links

Table of n, a(n) for n=1..22.

Formula

Empirical g.f.: -x*(x^9+x^8+5*x^7+5*x^6+325*x^5-3649*x^4-449*x^3-325*x^2-5*x-5) / (x^10-4098*x^5+1). - Colin Barker, Jun 04 2015

Crossrefs

Cf. A195500, A195565, A195566.

Sequence in context: A094463 A055928 A213145 * A051716 A226260 A102060

Adjacent sequences: A195564 A195565 A195566 * A195568 A195569 A195570

Keyword

nonn

Author

Clark Kimberling, Sep 21 2011

Status

approved