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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 12 |
| 6 | 2 |
| 7 | 58 |
| 8 | 12 |
| 9 | 58 |
| 10 | 12 |
| 11 | 1014 |
| 12 | 12 |
| 13 | 4084 |
| 14 | 58 |
| 15 | 248 |
| 16 | 248 |
| 17 | 65520 |
| 18 | 58 |
| 19 | 262126 |
| 20 | 248 |
| 21 | 4084 |
| 22 | 1014 |
| 23 | 4194282 |
| 24 | 248 |
| 25 | 1048556 |
| 26 | 4084 |
| 27 | 262126 |
| 28 | 4084 |
| 29 | 268435428 |
| 30 | 248 |
| 31 | 1073741794 |
| 32 | 65520 |
| 33 | 1048556 |
| 34 | 65520 |
| 35 | 16777192 |
| 36 | 4084 |
| 37 | 68719476700 |
| 38 | 262126 |
| 39 | 16777192 |
| 40 | 65520 |