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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.

A195631 Denominators a(n) of Pythagorean approximations b(n)/a(n) to sqrt(2/3).

Table of values

n a(n)
1 4
2 171
3 3304
4 36456
5 193028
6 198629
7 64044140
8 3209176272
9 2089963197
10 14714161192
11 151173075361
12 450458512764
13 1490895165780
14 4767682119956876
15 19409457907183648
16 293100434264580753
17 818944253254104320
18 19191303984466705047

List of values

[4, 171, 3304, 36456, 193028, 198629, 64044140, 3209176272, 2089963197, 14714161192, 151173075361, 450458512764, 1490895165780, 4767682119956876, 19409457907183648, 293100434264580753, 818944253254104320, 19191303984466705047]

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

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