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 | 40 |
| 2 | 370 |
| 3 | 1640 |
| 4 | 4930 |
| 5 | 11752 |
| 6 | 24050 |
| 7 | 44200 |
| 8 | 75010 |
| 9 | 119720 |
| 10 | 182002 |
| 11 | 265960 |
| 12 | 376130 |
| 13 | 517480 |
| 14 | 695410 |
| 15 | 915752 |
| 16 | 1184770 |
| 17 | 1509160 |
| 18 | 1896050 |
| 19 | 2353000 |
| 20 | 2888002 |
| 21 | 3509480 |
| 22 | 4226290 |
| 23 | 5047720 |
| 24 | 5983490 |
| 25 | 7043752 |