A195570 Hypotenuses of primitive Pythagorean triples in A195568 and A195569.

5, 17, 241, 1285, 4385, 62177, 331525, 1131313, 16041425, 85532165, 291874369, 4138625473, 22066967045, 75302455889, 1067749330609, 5693191965445, 19427741744993, 275475188671649, 1468821460117765, 5012282067752305, 71071530927954833

Offset

1,1

Comments

See A195500 for discussion and list of related sequences; see A195568 for Mathematica program.

Links

Table of n, a(n) for n=1..21.

Formula

Empirical g.f.: -x*(x^5+x^4+5*x^3-241*x^2-17*x-5) / (x^6-258*x^3+1). - Colin Barker, Jun 04 2015

Crossrefs

Cf. A195500, A195568, A195569.

Sequence in context: A062230 A103920 A086362 * A281504 A191500 A089894

Adjacent sequences: A195567 A195568 A195569 * A195571 A195572 A195573

Keyword

nonn

Author

Clark Kimberling, Sep 21 2011

Status

approved