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 | 3125 |
| 1 | 161051 |
| 2 | 1419857 |
| 3 | 6436343 |
| 4 | 20511149 |
| 5 | 52521875 |
| 6 | 115856201 |
| 7 | 229345007 |
| 8 | 418195493 |
| 9 | 714924299 |
| 10 | 1160290625 |
| 11 | 1804229351 |
| 12 | 2706784157 |
| 13 | 3939040643 |
| 14 | 5584059449 |
| 15 | 7737809375 |
| 16 | 10510100501 |
| 17 | 14025517307 |
| 18 | 18424351793 |
| 19 | 23863536599 |
| 20 | 30517578125 |
| 21 | 38579489651 |
| 22 | 48261724457 |