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 | 848 |
| 2 | 1616 |
| 3 | 3220 |
| 4 | 6584 |
| 5 | 13668 |
| 6 | 29012 |
| 7 | 62108 |
| 8 | 133716 |
| 9 | 288996 |
| 10 | 627654 |
| 11 | 1366118 |
| 12 | 2978172 |
| 13 | 6500008 |
| 14 | 14206554 |
| 15 | 31071490 |
| 16 | 67992670 |
| 17 | 148845278 |
| 18 | 325994076 |
| 19 | 714155690 |
| 20 | 1564780972 |
| 21 | 3429103460 |
| 22 | 7515830880 |
| 23 | 16474726804 |
| 24 | 36114808462 |