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 | 0 |
| 2 | 1 |
| 3 | 135 |
| 4 | 5733 |
| 5 | 11229 |
| 6 | 42705 |
| 7 | 50445 |
| 8 | 117649 |
| 9 | 131365 |
| 10 | 168093 |
| 11 | 636405 |
| 12 | 699825 |
| 13 | 1269495 |
| 14 | 2528155 |
| 15 | 4226175 |
| 16 | 6176709 |
| 17 | 6502545 |
| 18 | 9365265 |
| 19 | 9551115 |
| 20 | 13227021 |
| 21 | 14464485 |
| 22 | 14912625 |
| 23 | 20859435 |
| 24 | 26903605 |
| 25 | 28251265 |
| 26 | 30589905 |
| 27 | 32660901 |
| 28 | 37597329 |
| 29 | 41506875 |
| 30 | 42766465 |
| 31 | 55452075 |
| 32 | 56192535 |
| 33 | 111898605 |