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 | 14 |
| 2 | 324 |
| 3 | 400 |
| 4 | 656 |
| 5 | 988 |
| 6 | 2628 |
| 7 | 7140 |
| 8 | 19368 |
| 9 | 52864 |
| 10 | 144228 |
| 11 | 394248 |
| 12 | 1077956 |
| 13 | 2947432 |
| 14 | 8062396 |
| 15 | 22050256 |
| 16 | 60314412 |
| 17 | 164976924 |
| 18 | 451256880 |
| 19 | 1234335036 |
| 20 | 3376282048 |
| 21 | 9235192524 |
| 22 | 25261198432 |
| 23 | 69097304872 |
| 24 | 189003117812 |
| 25 | 516983415672 |