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 | 3 |
| 2 | 9 |
| 3 | 9 |
| 4 | 22 |
| 5 | 81 |
| 6 | 27 |
| 7 | 46 |
| 8 | 484 |
| 9 | 729 |
| 10 | 81 |
| 11 | 86 |
| 12 | 2116 |
| 13 | 9515 |
| 14 | 6561 |
| 15 | 243 |
| 16 | 148 |
| 17 | 7396 |
| 18 | 76092 |
| 19 | 186004 |
| 20 | 59049 |
| 21 | 729 |
| 22 | 239 |
| 23 | 21904 |
| 24 | 440628 |
| 25 | 2558848 |
| 26 | 3628696 |
| 27 | 531441 |
| 28 | 2187 |
| 29 | 367 |
| 30 | 57121 |
| 31 | 2026448 |
| 32 | 22935921 |
| 33 | 84988435 |
| 34 | 70779056 |
| 35 | 4782969 |
| 36 | 6561 |
| 37 | 541 |
| 38 | 134689 |
| 39 | 7829639 |