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 | 4 |
| 4 | 29 |
| 5 | 95 |
| 6 | 153 |
| 7 | 532 |
| 8 | 613 |
| 9 | 840 |
| 10 | 2033 |
| 11 | 2071 |
| 12 | 3328 |
| 13 | 12429 |
| 14 | 112896 |
| 15 | 129638 |
| 16 | 371162 |
| 17 | 1095666 |
| 18 | 3890691 |
| 19 | 4264691 |
| 20 | 31685458 |
| 21 | 61365215 |
| 22 | 92432200 |
| 23 | 144941960 |