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 | 1 |
| 2 | 4 |
| 3 | 493 |
| 4 | 1565 |
| 5 | 6210 |
| 6 | 26375 |
| 7 | 64019 |
| 8 | 289862 |
| 9 | 870828 |
| 10 | 1244485 |
| 11 | 3313113 |
| 12 | 4300012 |
| 13 | 7946206 |
| 14 | 1447234860 |
| 15 | 4147639664 |
| 16 | 7190149312 |
| 17 | 23828369695 |
| 18 | 39710847388 |
| 19 | 494027033160 |
| 20 | 982853084580 |
| 21 | 1095174951021 |
| 22 | 1141650682059 |
| 23 | 1522735118076 |
| 24 | 1642938906044 |