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 | 4 |
| 2 | 35 |
| 3 | 1986 |
| 4 | 52827 |
| 5 | 885690 |
| 6 | 10540371 |
| 7 | 104446714 |
| 8 | 938543435 |
| 9 | 7996169226 |
| 10 | 66170227587 |
| 11 | 538977760842 |
| 12 | 4352945018619 |
| 13 | 34996920361210 |
| 14 | 280699272183347 |
| 15 | 2248598404709850 |
| 16 | 18001206351037995 |
| 17 | 144060870372238122 |