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 | 1 |
| 4 | 3 |
| 5 | 4 |
| 6 | 3 |
| 7 | 4 |
| 8 | 6 |
| 9 | 8 |
| 10 | 12 |
| 11 | 13 |
| 12 | 18 |
| 13 | 24 |
| 14 | 33 |
| 15 | 39 |
| 16 | 52 |
| 17 | 67 |
| 18 | 88 |
| 19 | 113 |
| 20 | 155 |
| 21 | 211 |
| 22 | 264 |
| 23 | 331 |
| 24 | 455 |
| 25 | 596 |
| 26 | 762 |
| 27 | 1000 |
| 28 | 1288 |
| 29 | 1688 |
| 30 | 2222 |
| 31 | 2884 |
| 32 | 3754 |
| 33 | 4915 |
| 34 | 6364 |
| 35 | 8300 |
| 36 | 10845 |
| 37 | 14138 |
| 38 | 18372 |
| 39 | 23966 |
| 40 | 31254 |
| 41 | 40821 |
| 42 | 53113 |
| 43 | 69336 |
| 44 | 90273 |
| 45 | 117678 |
| 46 | 153518 |
| 47 | 199990 |
| 48 | 260671 |
| 49 | 340007 |