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 | 51 |
| 2 | 867 |
| 3 | 11932 |
| 4 | 146946 |
| 5 | 1692945 |
| 6 | 18624423 |
| 7 | 198262359 |
| 8 | 2055746385 |
| 9 | 20869314255 |
| 10 | 208139081237 |
| 11 | 2045065967111 |
| 12 | 19837690800848 |
| 13 | 190312987378848 |
| 14 | 1808321481842796 |
| 15 | 17039496826295448 |
| 16 | 159395007901738133 |