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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | -10 |
| 5 | 1 |
| 6 | 1 |
| 7 | 111 |
| 8 | 111 |
| 9 | 1 |
| 10 | 1 |
| 11 | -1220 |
| 12 | 13542 |
| 13 | -1220 |
| 14 | 1 |
| 15 | 1 |
| 16 | 13421 |
| 17 | 1637362 |
| 18 | 1637362 |
| 19 | 13421 |
| 20 | 1 |
| 21 | 1 |
| 22 | -147630 |
| 23 | 198134223 |
| 24 | -2177691460 |
| 25 | 198134223 |
| 26 | -147630 |
| 27 | 1 |
| 28 | 1 |
| 29 | 1623931 |
| 30 | 23974093353 |
| 31 | 2898705467483 |
| 32 | 2898705467483 |
| 33 | 23974093353 |
| 34 | 1623931 |
| 35 | 1 |
| 36 | 1 |