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 | 11 |
| 3 | 253 |
| 4 | 11891 |
| 5 | 35167 |
| 6 | 45023 |
| 7 | 47927 |
| 8 | 96569 |
| 9 | 276859 |
| 10 | 640343 |
| 11 | 1035529 |
| 12 | 1102321 |
| 13 | 1652849 |
| 14 | 2221087 |
| 15 | 6367757 |
| 16 | 16339367 |
| 17 | 19588019 |
| 18 | 26499979 |
| 19 | 30096121 |
| 20 | 48669863 |
| 21 | 51809087 |
| 22 | 74901409 |
| 23 | 88023001 |
| 24 | 89007677 |
| 25 | 104391089 |
| 26 | 105080767 |
| 27 | 143938531 |