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 | 2187 |
| 2 | 4782969 |
| 3 | 1380511272 |
| 4 | 92756321858 |
| 5 | 2708281019793 |
| 6 | 47087051658638 |
| 7 | 574360426081996 |
| 8 | 5392250304954708 |
| 9 | 41292036231202766 |
| 10 | 268318893714852915 |
| 11 | 1522088317195862139 |
| 12 | 7698392543196415664 |
| 13 | 35283079262827759084 |