A195688 Numerators b(n) of Pythagorean approximations b(n)/a(n) to (1+sqrt(5))/2 (the golden ratio).

4, 15, 45, 3016, 7119, 700625, 424496, 569883075, 614724165, 29802502503, 147259295688, 1582627794499, 18634518228117, 1973646616563639, 1146044323606678197, 41830280831514255267, 370889360592907981397560, 26770920007080137664392439

Offset

1,1

Comments

See A195500 for discussion and list of related sequences; see A195687 for Mathematica program.

Links

Table of n, a(n) for n=1..18.

Crossrefs

Cf. A195500, A195687, A195689.

Sequence in context: A074448 A297088 A152116 * A111038 A188716 A100506

Adjacent sequences: A195685 A195686 A195687 * A195689 A195690 A195691

Keyword

nonn

Author

Clark Kimberling, Sep 22 2011

Status

approved