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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 3 |
| 7 | 7 |
| 8 | 7 |
| 9 | 19 |
| 10 | 29 |
| 11 | 87 |
| 12 | 52 |
| 13 | 315 |
| 14 | 291 |
| 15 | 562 |
| 16 | 1017 |
| 17 | 3825 |
| 18 | 2870 |
| 19 | 13797 |
| 20 | 11255 |
| 21 | 23579 |
| 22 | 59986 |
| 23 | 178259 |
| 24 | 103680 |
| 25 | 607522 |
| 26 | 859849 |
| 27 | 1551227 |
| 28 | 1815045 |
| 29 | 9203747 |
| 30 | 5505966 |
| 31 | 28629151 |
| 32 | 33552327 |
| 33 | 78899078 |
| 34 | 167112969 |
| 35 | 333342388 |
| 36 | 267841392 |
| 37 | 1848954877 |
| 38 | 2411186731 |