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.

A367090 Numbers that cannot be written as a sum of distinct powers of 3 and distinct powers of 4.

Table of values

n a(n)
1 62
2 63
3 143
4 144
5 207
6 208
7 209
8 210
9 211
10 212
11 213
12 214
13 215
14 216
15 217
16 218
17 219
18 220
19 221
20 222
21 223
22 224
23 225
24 226
25 227
26 228
27 229
28 230
29 231
30 232
31 233
32 234
33 235
34 236
35 237
36 238
37 239
38 240
39 241
40 242
41 463
42 464
43 465
44 466
45 467
46 468
47 469
48 470
49 471
50 472
51 473
52 474
53 475
54 476
55 477
56 478
57 479
58 480

List of values

[62, 63, 143, 144, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.