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 | 430 |
| 2 | 4305 |
| 3 | 16840 |
| 4 | 218960 |
| 5 | 895275 |
| 6 | 1221860 |
| 7 | 1548445 |
| 8 | 7892360 |
| 9 | 44002820 |
| 10 | 55760125 |
| 11 | 59679145 |
| 12 | 284180120 |
| 13 | 1584195140 |
| 14 | 1654738970 |
| 15 | 2007458365 |
| 16 | 2027613685 |
| 17 | 2148546025 |
| 18 | 2172060145 |
| 19 | 10230811640 |
| 20 | 12538603735 |
| 21 | 57031585220 |
| 22 | 59571164570 |