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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 3 |
| 7 | 4 |
| 8 | 9 |
| 9 | 11 |
| 10 | 13 |
| 11 | 31 |
| 12 | 37 |
| 13 | 44 |
| 14 | 105 |
| 15 | 125 |
| 16 | 149 |
| 17 | 355 |
| 18 | 423 |
| 19 | 504 |
| 20 | 1201 |
| 21 | 1431 |
| 22 | 1705 |
| 23 | 4063 |
| 24 | 4841 |
| 25 | 5768 |
| 26 | 13745 |
| 27 | 16377 |
| 28 | 19513 |
| 29 | 46499 |
| 30 | 55403 |
| 31 | 66012 |
| 32 | 157305 |
| 33 | 187427 |
| 34 | 223317 |
| 35 | 532159 |
| 36 | 634061 |
| 37 | 755476 |
| 38 | 1800281 |
| 39 | 2145013 |
| 40 | 2555757 |
| 41 | 6090307 |
| 42 | 7256527 |