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A195558 Hypotenuses of primitive Pythagorean triples in A195556 and A195557. 3
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..25.

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

CROSSREFS

Cf. A195500, A195556, A195557.

Sequence in context: A264732 A298483 A344900 * A026058 A032697 A125724

Adjacent sequences: A195555 A195556 A195557 * A195559 A195560 A195561

KEYWORD

nonn

AUTHOR

Clark Kimberling, Sep 21 2011

STATUS

approved

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Last modified February 3 12:03 EST 2023. Contains 360034 sequences. (Running on oeis4.)