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A195569 Numerators b(n) of Pythagorean approximations b(n)/a(n) to 7/4. 3
4, 15, 209, 1116, 3807, 53985, 287844, 982255, 13927857, 74262716, 253417919, 3593333185, 19159492804, 65380840911, 927066033809, 4943074880796, 16868003537055, 239179443389601, 1275294159752484, 4351879531719343, 61707369328483185 (list; graph; refs; listen; history; text; internal format)
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.

CROSSREFS

Cf. A195500, A195568, A195570.

Sequence in context: A197753 A197934 A137654 * A118908 A153060 A139244

Adjacent sequences:  A195566 A195567 A195568 * A195570 A195571 A195572

KEYWORD

nonn

AUTHOR

Clark Kimberling, Sep 21 2011

STATUS

approved

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Last modified December 20 15:01 EST 2014. Contains 252266 sequences.