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 | 26 |
| 2 | 676 |
| 3 | 3910 |
| 4 | 23637 |
| 5 | 177872 |
| 6 | 1415508 |
| 7 | 12014735 |
| 8 | 104356568 |
| 9 | 923279444 |
| 10 | 8235619511 |
| 11 | 73879113940 |
| 12 | 664653206922 |
| 13 | 5990740209831 |
| 14 | 54051817052290 |
| 15 | 488001087186844 |
| 16 | 4407494366626123 |
| 17 | 39816464814539414 |
| 18 | 359742927867575360 |