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 | 2 |
| 1 | 1 |
| 2 | 0 |
| 3 | 26 |
| 4 | 23 |
| 5 | 118 |
| 6 | 53 |
| 7 | 120 |
| 8 | 409 |
| 9 | 532 |
| 10 | 293 |
| 11 | 1140 |
| 12 | 211 |
| 13 | 1340 |
| 14 | 1341 |
| 15 | 1342 |
| 16 | 1343 |
| 17 | 1344 |
| 18 | 2179 |
| 19 | 15702 |
| 20 | 3967 |
| 21 | 15704 |
| 22 | 15705 |
| 23 | 19632 |
| 24 | 16033 |
| 25 | 19634 |
| 26 | 19635 |
| 27 | 31424 |
| 28 | 31425 |
| 29 | 31426 |
| 30 | 24281 |
| 31 | 31428 |
| 32 | 31429 |
| 33 | 31430 |
| 34 | 31431 |
| 35 | 31432 |
| 36 | 31433 |
| 37 | 155958 |
| 38 | 155959 |
| 39 | 155960 |
| 40 | 38501 |