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.

A292931 Numbers n such that the sum of digits of 3^n (A004166) is divisible by 7.

Table of values

n a(n)
1 25
2 26
3 30
4 32
5 47
6 58
7 79
8 81
9 87
10 89
11 102
12 123
13 141
14 144
15 145
16 151
17 164
18 176
19 178
20 193
21 201
22 227
23 239
24 242
25 257
26 264
27 282
28 289
29 300
30 306
31 319
32 324
33 329
34 335
35 336
36 338
37 348
38 351
39 358
40 365
41 395
42 403
43 437
44 441
45 450
46 460
47 468
48 484
49 489
50 492
51 495
52 517
53 518
54 541
55 542
56 544
57 554
58 555
59 563
60 565
61 570

List of values

[25, 26, 30, 32, 47, 58, 79, 81, 87, 89, 102, 123, 141, 144, 145, 151, 164, 176, 178, 193, 201, 227, 239, 242, 257, 264, 282, 289, 300, 306, 319, 324, 329, 335, 336, 338, 348, 351, 358, 365, 395, 403, 437, 441, 450, 460, 468, 484, 489, 492, 495, 517, 518, 541, 542, 544, 554, 555, 563, 565, 570]

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

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