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 | 1 |
| 2 | 22 |
| 3 | 379 |
| 4 | 5713 |
| 5 | 80032 |
| 6 | 1080325 |
| 7 | 14354557 |
| 8 | 189853438 |
| 9 | 2511177679 |
| 10 | 33258000301 |
| 11 | 440953665088 |
| 12 | 5849978617585 |
| 13 | 77627638378537 |
| 14 | 1030136054227366 |
| 15 | 13669717178313811 |
| 16 | 181387989640645081 |
| 17 | 2406840013228174816 |