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.

A254638 Cardinality of Image^inf({ 2 }) under repeated base-n zero-split doubling.

Table of values

n a(n)
2 2
3 6
4 2
5 20
6 13
7 72
8 3
9 92
10 42
11 308
12 34
13 900
14 178
15 1739
16 4
17 3349
18 443
19 4523
20 387
21 14364
22 1827
23 18672
24 234
25 39426
26 15882
27 52664
28 8858
29 128253
30 28346
31 123087
32 5
33 259207
34 87797
35 363512
36 44545
37 671389
38 182549
39 1336282
40 18049
41 1289210
42 634402
43 2679419
44 156629

List of values

[2, 6, 2, 20, 13, 72, 3, 92, 42, 308, 34, 900, 178, 1739, 4, 3349, 443, 4523, 387, 14364, 1827, 18672, 234, 39426, 15882, 52664, 8858, 128253, 28346, 123087, 5, 259207, 87797, 363512, 44545, 671389, 182549, 1336282, 18049, 1289210, 634402, 2679419, 156629]