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 | 2 |
| 2 | 1429 |
| 3 | 32869 |
| 4 | 3189059 |
| 5 | 5157791 |
| 6 | 62701339 |
| 7 | 139181423 |
| 8 | 296686879 |
| 9 | 522304883 |
| 10 | 5070516751 |
| 11 | 6276844867 |
| 12 | 7098350179 |
| 13 | 8983996079 |
| 14 | 9331926623 |
| 15 | 21211375343 |
| 16 | 31177858939 |
| 17 | 34861039007 |
| 18 | 38865340309 |
| 19 | 39918757589 |
| 20 | 62858815181 |