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.

A139768 Numbers k such that (10^(k+1) mod 9^(k+1))/(10^k mod 9^k)=10, or A139739(k+1)/A139739(k)=10.

Table of values

n a(n)
1 21
2 38
3 57
4 58
5 71
6 81
7 127
8 148
9 164
10 181
11 188
12 195
13 204
14 208
15 209
16 212
17 232
18 244
19 249
20 250
21 251
22 252
23 267
24 269
25 270
26 300
27 317
28 326
29 356
30 357
31 382
32 398
33 407
34 409
35 416
36 417
37 420
38 447
39 448
40 453
41 471
42 479
43 480
44 481
45 492
46 502
47 505
48 528
49 530
50 548
51 554
52 561
53 570

List of values

[21, 38, 57, 58, 71, 81, 127, 148, 164, 181, 188, 195, 204, 208, 209, 212, 232, 244, 249, 250, 251, 252, 267, 269, 270, 300, 317, 326, 356, 357, 382, 398, 407, 409, 416, 417, 420, 447, 448, 453, 471, 479, 480, 481, 492, 502, 505, 528, 530, 548, 554, 561, 570]