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 | 129 |
| 2 | 2315 |
| 3 | 18571 |
| 4 | 94509 |
| 5 | 358061 |
| 6 | 1103479 |
| 7 | 2920695 |
| 8 | 6880121 |
| 9 | 14782969 |
| 10 | 29487171 |
| 11 | 55318979 |
| 12 | 98580325 |
| 13 | 168162021 |
| 14 | 276272879 |
| 15 | 439294831 |
| 16 | 678774129 |
| 17 | 1022558705 |
| 18 | 1506091771 |
| 19 | 2173871739 |
| 20 | 3081088541 |
| 21 | 4295446429 |
| 22 | 5899183335 |
| 23 | 7991296871 |
| 24 | 10689987049 |
| 25 | 14135325801 |