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 | 2 |
| 2 | 14 |
| 3 | 1022 |
| 4 | 20066 |
| 5 | 485918 |
| 6 | 2531678 |
| 7 | 3677198 |
| 8 | 8277458 |
| 9 | 8893262 |
| 10 | 21122318 |
| 11 | 26358638 |
| 12 | 39852014 |
| 13 | 42448478 |
| 14 | 76712318 |
| 15 | 131492498 |
| 16 | 144322478 |
| 17 | 164360606 |
| 18 | 175126478 |
| 19 | 176647378 |
| 20 | 196705598 |
| 21 | 249126626 |
| 22 | 306789074 |
| 23 | 317051378 |
| 24 | 438023138 |
| 25 | 497041538 |
| 26 | 696970718 |
| 27 | 996520658 |