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.

A353579 Numbers in the smallest subset of N containing 1 and closed under the mappings k->2^n + k, k->3*2^{n+1} + k, and k->3*2^{n+2} + k where n = ceiling(log_2(k)).

Table of values

n a(n)
1 1
2 2
3 4
4 7
5 8
6 13
7 14
8 15
9 16
10 26
11 28
12 29
13 30
14 31
15 32
16 52
17 55
18 56
19 58
20 60
21 61
22 62
23 63
24 64
25 103
26 104
27 109
28 110
29 111
30 112
31 116
32 119
33 120
34 122
35 124
36 125
37 126
38 127
39 128
40 205
41 206
42 207
43 208
44 218
45 220
46 221
47 222
48 223
49 224
50 231
51 232
52 237
53 238
54 239
55 240
56 244
57 247
58 248
59 250
60 252
61 253
62 254
63 255
64 256

List of values

[1, 2, 4, 7, 8, 13, 14, 15, 16, 26, 28, 29, 30, 31, 32, 52, 55, 56, 58, 60, 61, 62, 63, 64, 103, 104, 109, 110, 111, 112, 116, 119, 120, 122, 124, 125, 126, 127, 128, 205, 206, 207, 208, 218, 220, 221, 222, 223, 224, 231, 232, 237, 238, 239, 240, 244, 247, 248, 250, 252, 253, 254, 255, 256]