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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.

A195538 Denominators a(n) of Pythagorean approximations b(n)/a(n) to sqrt(8).

Table of values

n a(n)
1 5
2 12
3 145
4 420
5 4901
6 14280
7 166465
8 485112
9 5654885
10 16479540
11 192099601
12 559819260
13 6525731525
14 19017375312
15 221682772225
16 646030941360
17 7530688524101
18 21946034630940
19 255821727047185
20 745519146510612
21 8690408031080165

List of values

[5, 12, 145, 420, 4901, 14280, 166465, 485112, 5654885, 16479540, 192099601, 559819260, 6525731525, 19017375312, 221682772225, 646030941360, 7530688524101, 21946034630940, 255821727047185, 745519146510612, 8690408031080165]

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

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