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 | 294001 |
| 2 | 604171 |
| 3 | 971767 |
| 4 | 2690201 |
| 5 | 10564877 |
| 6 | 104097043 |
| 7 | 354975121 |
| 8 | 1378229029 |
| 9 | 1444623667 |
| 10 | 1594371379 |
| 11 | 3979115747 |
| 12 | 15737262803 |
| 13 | 22090236251 |
| 14 | 28198307351 |
| 15 | 35373071549 |
| 16 | 49430022721 |
| 17 | 67580736437 |
| 18 | 142243533671 |
| 19 | 659956292591 |
| 20 | 1385321944133 |