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 | 42 |
| 2 | 381 |
| 3 | 1606 |
| 4 | 4641 |
| 5 | 10746 |
| 6 | 21517 |
| 7 | 38886 |
| 8 | 65121 |
| 9 | 102826 |
| 10 | 154941 |
| 11 | 224742 |
| 12 | 315841 |
| 13 | 432186 |
| 14 | 578061 |
| 15 | 758086 |
| 16 | 977217 |
| 17 | 1240746 |
| 18 | 1554301 |
| 19 | 1923846 |
| 20 | 2355681 |
| 21 | 2856442 |
| 22 | 3433101 |
| 23 | 4092966 |
| 24 | 4843681 |
| 25 | 5693226 |