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 | 10 |
| 2 | 86 |
| 3 | 561 |
| 4 | 2861 |
| 5 | 12068 |
| 6 | 43947 |
| 7 | 142376 |
| 8 | 419213 |
| 9 | 1139569 |
| 10 | 2894178 |
| 11 | 6931366 |
| 12 | 15770131 |
| 13 | 34291532 |
| 14 | 71619470 |
| 15 | 144269412 |
| 16 | 281284873 |
| 17 | 532422712 |
| 18 | 980922994 |
| 19 | 1763049635 |
| 20 | 3097467201 |
| 21 | 5328692624 |
| 22 | 8990408705 |
| 23 | 14896447100 |
| 24 | 24269860485 |