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 | 128 |
| 2 | 1760 |
| 3 | 43959 |
| 4 | 742688 |
| 5 | 14011359 |
| 6 | 236272677 |
| 7 | 4064720816 |
| 8 | 67174864630 |
| 9 | 1109043586715 |
| 10 | 17995383255288 |
| 11 | 290431722641261 |
| 12 | 4645047826683577 |
| 13 | 73887191299532384 |
| 14 | 1168678595574438796 |
| 15 | 18400291710723401503 |