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 | 12 |
| 3 | 123 |
| 4 | 312 |
| 5 | 1234 |
| 6 | 1423 |
| 7 | 3124 |
| 8 | 3412 |
| 9 | 4123 |
| 10 | 12345 |
| 11 | 12534 |
| 12 | 14235 |
| 13 | 14523 |
| 14 | 15234 |
| 15 | 31245 |
| 16 | 31524 |
| 17 | 34125 |
| 18 | 34512 |
| 19 | 35124 |
| 20 | 41235 |
| 21 | 41523 |
| 22 | 45123 |
| 23 | 51234 |
| 24 | 51423 |
| 25 | 53412 |
| 26 | 123456 |
| 27 | 123645 |
| 28 | 125346 |
| 29 | 125634 |
| 30 | 126345 |
| 31 | 142356 |
| 32 | 142635 |
| 33 | 145236 |
| 34 | 145623 |
| 35 | 146235 |
| 36 | 152346 |
| 37 | 152634 |