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.

A259568 Numbers following gaps in the sequence of base-4 numbers that don't contain 0.

Table of values

n a(n)
1 1
2 5
3 9
4 13
5 21
6 25
7 29
8 37
9 41
10 45
11 53
12 57
13 61
14 85
15 89
16 93
17 101
18 105
19 109
20 117
21 121
22 125
23 149
24 153
25 157
26 165
27 169
28 173
29 181
30 185
31 189
32 213
33 217
34 221
35 229
36 233
37 237
38 245
39 249
40 253
41 341
42 345
43 349
44 357
45 361
46 365
47 373
48 377
49 381
50 405
51 409
52 413
53 421
54 425
55 429
56 437
57 441
58 445
59 469
60 473
61 477
62 485
63 489
64 493
65 501
66 505
67 509
68 597
69 601
70 605

List of values

[1, 5, 9, 13, 21, 25, 29, 37, 41, 45, 53, 57, 61, 85, 89, 93, 101, 105, 109, 117, 121, 125, 149, 153, 157, 165, 169, 173, 181, 185, 189, 213, 217, 221, 229, 233, 237, 245, 249, 253, 341, 345, 349, 357, 361, 365, 373, 377, 381, 405, 409, 413, 421, 425, 429, 437, 441, 445, 469, 473, 477, 485, 489, 493, 501, 505, 509, 597, 601, 605]