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 | 5776 |
| 2 | 190096 |
| 3 | 6739216 |
| 4 | 97990201 |
| 5 | 241989136 |
| 6 | 242611776 |
| 7 | 3975176401 |
| 8 | 8707875856 |
| 9 | 8711608896 |
| 10 | 14393520729 |
| 11 | 25588481296 |
| 12 | 39982002025 |
| 13 | 57574082916 |
| 14 | 95174101009 |
| 15 | 149392299169 |
| 16 | 313461135376 |
| 17 | 313483530816 |
| 18 | 380696404036 |
| 19 | 4724628251641 |
| 20 | 11284466503696 |
| 21 | 11284600873536 |