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.

A296026 Numbers n such that there are precisely 2 groups of order n and 4 of order n + 1.

Table of values

n a(n)
1 62
2 129
3 153
4 169
5 237
6 245
7 274
8 278
9 285
10 289
11 314
12 369
13 386
14 417
15 425
16 429
17 497
18 529
19 555
20 597
21 637
22 645
23 669
24 715
25 813
26 889
27 914
28 926
29 955
30 961
31 969
32 1065
33 1101
34 1131
35 1154
36 1221
37 1227
38 1286
39 1341
40 1369
41 1389
42 1405
43 1435
44 1461
45 1497
46 1505
47 1515
48 1557
49 1569
50 1675
51 1771

List of values

[62, 129, 153, 169, 237, 245, 274, 278, 285, 289, 314, 369, 386, 417, 425, 429, 497, 529, 555, 597, 637, 645, 669, 715, 813, 889, 914, 926, 955, 961, 969, 1065, 1101, 1131, 1154, 1221, 1227, 1286, 1341, 1369, 1389, 1405, 1435, 1461, 1497, 1505, 1515, 1557, 1569, 1675, 1771]