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.

A031945 Numbers in which 0,1,2,3 all occur in base 4.

Table of values

n a(n)
1 75
2 78
3 99
4 108
5 114
6 120
7 135
8 141
9 147
10 156
11 177
12 180
13 198
14 201
15 210
16 216
17 225
18 228
19 267
20 270
21 283
22 286
23 291
24 295
25 299
26 300
27 301
28 302
29 303
30 306
31 310
32 312
33 313
34 314
35 315
36 318
37 331
38 334
39 355
40 364
41 370
42 376
43 387
44 391
45 395
46 396

List of values

[75, 78, 99, 108, 114, 120, 135, 141, 147, 156, 177, 180, 198, 201, 210, 216, 225, 228, 267, 270, 283, 286, 291, 295, 299, 300, 301, 302, 303, 306, 310, 312, 313, 314, 315, 318, 331, 334, 355, 364, 370, 376, 387, 391, 395, 396]