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.

A217164 a(n) is the least value of k such that the decimal expansion of n^k contains nine consecutive identical digits.

Table of values

n a(n)
2 42485
3 22791
4 21243
5 2796
6 27717
7 33836
8 14162
9 22076
10 9
11 9443
12 11429
13 16661
14 16548
15 11259
16 10622
17 14991
18 5786
19 28096
20 9
21 2890
22 16736
23 14116
24 4549
25 1398
26 27735
27 7597
28 3614
29 10332
30 9
31 4057
32 8497
33 9060
34 23985
35 2943
36 13859
37 11422
38 13270
39 5773
40 9
41 14777
42 11541

List of values

[42485, 22791, 21243, 2796, 27717, 33836, 14162, 22076, 9, 9443, 11429, 16661, 16548, 11259, 10622, 14991, 5786, 28096, 9, 2890, 16736, 14116, 4549, 1398, 27735, 7597, 3614, 10332, 9, 4057, 8497, 9060, 23985, 2943, 13859, 11422, 13270, 5773, 9, 14777, 11541]