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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 2 |
| 4 | 18 |
| 5 | 128 |
| 6 | 171 |
| 7 | 42 |
| 8 | 1 |
| 9 | 22 |
| 10 | 1348 |
| 11 | 11738 |
| 12 | 26293 |
| 13 | 17693 |
| 14 | 3271 |
| 15 | 115 |
| 16 | 13 |
| 17 | 6122 |
| 18 | 228986 |
| 19 | 2070813 |
| 20 | 6324083 |
| 21 | 7397855 |
| 22 | 3361536 |
| 23 | 544247 |
| 24 | 24590 |
| 25 | 155 |
| 26 | 3 |
| 27 | 17248 |
| 28 | 2413434 |
| 29 | 67035224 |
| 30 | 612026240 |
| 31 | 2274148882 |