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.

A295230 Numbers n such that there are precisely 2 groups of orders n and n + 1.

Table of values

n a(n)
1 9
2 21
3 25
4 38
5 45
6 57
7 93
8 105
9 121
10 165
11 194
12 201
13 202
14 205
15 206
16 218
17 253
18 261
19 301
20 325
21 326
22 357
23 361
24 381
25 385
26 422
27 453
28 477
29 482
30 538
31 542
32 554
33 614
34 626
35 633
36 662
37 746
38 758
39 765
40 801
41 841
42 861
43 897
44 921
45 925
46 934
47 1005
48 1017
49 1045
50 1046
51 1081
52 1094
53 1113
54 1126
55 1137

List of values

[9, 21, 25, 38, 45, 57, 93, 105, 121, 165, 194, 201, 202, 205, 206, 218, 253, 261, 301, 325, 326, 357, 361, 381, 385, 422, 453, 477, 482, 538, 542, 554, 614, 626, 633, 662, 746, 758, 765, 801, 841, 861, 897, 921, 925, 934, 1005, 1017, 1045, 1046, 1081, 1094, 1113, 1126, 1137]