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 | 21 |
| 2 | 312 |
| 3 | 132 |
| 4 | 231 |
| 5 | 321 |
| 6 | 4123 |
| 7 | 1423 |
| 8 | 2413 |
| 9 | 4213 |
| 10 | 1243 |
| 11 | 2143 |
| 12 | 3412 |
| 13 | 4312 |
| 14 | 1342 |
| 15 | 3142 |
| 16 | 4132 |
| 17 | 1432 |
| 18 | 2341 |
| 19 | 3241 |
| 20 | 4231 |
| 21 | 2431 |
| 22 | 3421 |
| 23 | 4321 |
| 24 | 51234 |
| 25 | 15234 |
| 26 | 25134 |
| 27 | 52134 |
| 28 | 12534 |
| 29 | 21534 |
| 30 | 35124 |
| 31 | 53124 |
| 32 | 13524 |
| 33 | 31524 |
| 34 | 51324 |
| 35 | 15324 |
| 36 | 23514 |
| 37 | 32514 |
| 38 | 52314 |
| 39 | 25314 |
| 40 | 35214 |
| 41 | 53214 |
| 42 | 12354 |
| 43 | 21354 |
| 44 | 31254 |