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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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

Table of values

n a(n)
1 4
2 15
3 45
4 3016
5 7119
6 700625
7 424496
8 569883075
9 614724165
10 29802502503
11 147259295688
12 1582627794499
13 18634518228117
14 1973646616563639
15 1146044323606678197
16 41830280831514255267
17 370889360592907981397560
18 26770920007080137664392439

List of values

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

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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