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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.

A306686 Values of n such that 9^n ends in n, or expomorphic numbers relative to "base" 9.

Table of values

n a(n)
1 9
2 89
3 289
4 5289
5 45289
6 745289
7 2745289
8 92745289
9 392745289
10 7392745289
11 97392745289
12 597392745289
13 7597392745289
14 87597392745289
15 8087597392745289
16 48087597392745289
17 748087597392745289
18 10748087597392745289
19 610748087597392745289
20 5610748087597392745289

List of values

[9, 89, 289, 5289, 45289, 745289, 2745289, 92745289, 392745289, 7392745289, 97392745289, 597392745289, 7597392745289, 87597392745289, 8087597392745289, 48087597392745289, 748087597392745289, 10748087597392745289, 610748087597392745289, 5610748087597392745289]

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

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