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 | 1 |
| 4 | 512 |
| 5 | 1 |
| 6 | 20195 |
| 7 | 1 |
| 8 | 262144 |
| 9 | 19683 |
| 10 | 1953637 |
| 11 | 1 |
| 12 | 10339840 |
| 13 | 1 |
| 14 | 40354119 |
| 15 | 1972808 |
| 16 | 134217728 |
| 17 | 1 |
| 18 | 397498185 |
| 19 | 1 |
| 20 | 1000262144 |
| 21 | 40373290 |
| 22 | 2357948203 |
| 23 | 1 |
| 24 | 5293998080 |
| 25 | 1953125 |
| 26 | 10604499885 |
| 27 | 387420489 |
| 28 | 20661308928 |
| 29 | 1 |
| 30 | 39453437071 |
| 31 | 1 |
| 32 | 68719476736 |
| 33 | 2357967374 |
| 34 | 118587877009 |
| 35 | 42306732 |