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 | 64 |
| 2 | 377 |
| 3 | 13386 |
| 4 | 182288 |
| 5 | 3990739 |
| 6 | 67970044 |
| 7 | 1316714732 |
| 8 | 23857469157 |
| 9 | 447258711806 |
| 10 | 8241043078032 |
| 11 | 153166086017419 |
| 12 | 2834527196647128 |
| 13 | 52566815845439784 |
| 14 | 973865461678268901 |
| 15 | 18050953034169454470 |