cp's OEIS Frontend

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.

A128405 Numbers k such that k^2 divides 12^k - 1.

Table of values

n a(n)
1 1
2 11
3 253
4 11891
5 768361
6 36112967
7 61488361
8 154261943
9 2936791979
10 61057324141
11 67546215517
12 107342336783
13 186740152357
14 347036920549
15 429306186947
16 468493520891
17 635974117823
18 797688507253
19 3174672129299

List of values

[1, 11, 253, 11891, 768361, 36112967, 61488361, 154261943, 2936791979, 61057324141, 67546215517, 107342336783, 186740152357, 347036920549, 429306186947, 468493520891, 635974117823, 797688507253, 3174672129299]

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

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