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 | 1326 |
| 2 | 5677 |
| 3 | 20247 |
| 4 | 62033 |
| 5 | 182411 |
| 6 | 494783 |
| 7 | 1285065 |
| 8 | 3207444 |
| 9 | 7727120 |
| 10 | 18118987 |
| 11 | 41455583 |
| 12 | 92866560 |
| 13 | 204327155 |
| 14 | 442336864 |
| 15 | 944080705 |
| 16 | 1989776449 |
| 17 | 4146042739 |
| 18 | 8551843243 |
| 19 | 17477022964 |
| 20 | 35418893825 |
| 21 | 71235013646 |
| 22 | 142269636195 |