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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 11 |
| 6 | 27 |
| 7 | 37 |
| 8 | 41 |
| 9 | 73 |
| 10 | 77 |
| 11 | 116 |
| 12 | 154 |
| 13 | 320 |
| 14 | 340 |
| 15 | 399 |
| 16 | 427 |
| 17 | 872 |
| 18 | 1477 |
| 19 | 6380 |
| 20 | 26951 |
| 21 | 110059 |
| 22 | 150209 |
| 23 | 288465 |
| 24 | 308084 |
| 25 | 422429 |