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.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 8 |
| 6 | 9 |
| 7 | 15 |
| 8 | 30 |
| 9 | 44 |
| 10 | 53 |
| 11 | 63 |
| 12 | 260 |
| 13 | 303 |
| 14 | 639 |
| 15 | 1101 |
| 16 | 1140 |
| 17 | 1608 |
| 18 | 2126 |
| 19 | 2211 |
| 20 | 4844 |
| 21 | 4970 |
| 22 | 5606 |
| 23 | 9968 |
| 24 | 10850 |
| 25 | 11604 |
| 26 | 22248 |
| 27 | 43121 |
| 28 | 55251 |
| 29 | 66024 |
| 30 | 108045 |
| 31 | 378419 |
| 32 | 429716 |
| 33 | 628893 |
| 34 | 699134 |
| 35 | 1488110 |
| 36 | 1510688 |
| 37 | 3486296 |
| 38 | 6733458 |
| 39 | 10498005 |
| 40 | 12018291 |
| 41 | 12982475 |
| 42 | 15201228 |