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 | 7 |
| 3 | 9 |
| 4 | 13 |
| 5 | 132 |
| 6 | 259 |
| 7 | 756 |
| 8 | 995 |
| 9 | 1217 |
| 10 | 1790 |
| 11 | 3809 |
| 12 | 6320 |
| 13 | 17298 |
| 14 | 63963 |
| 15 | 266138 |
| 16 | 821069 |
| 17 | 3300319 |
| 18 | 4218118 |
| 19 | 4403814 |
| 20 | 7172972 |
| 21 | 20058471 |
| 22 | 92458049 |
| 23 | 191069103 |
| 24 | 765926110 |
| 25 | 822857354 |
| 26 | 2489215358 |
| 27 | 2980617344 |
| 28 | 5257976545 |
| 29 | 5926840761 |
| 30 | 11328877119 |
| 31 | 45478158116 |
| 32 | 66167647170 |