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 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 5 |
| 7 | 5 |
| 8 | 12 |
| 9 | 13 |
| 10 | 30 |
| 11 | 36 |
| 12 | 80 |
| 13 | 97 |
| 14 | 213 |
| 15 | 266 |
| 16 | 578 |
| 17 | 737 |
| 18 | 1589 |
| 19 | 2051 |
| 20 | 4408 |
| 21 | 5747 |
| 22 | 12333 |
| 23 | 16213 |
| 24 | 34737 |
| 25 | 45979 |
| 26 | 98367 |
| 27 | 131007 |
| 28 | 279902 |
| 29 | 374781 |
| 30 | 799732 |
| 31 | 1075793 |
| 32 | 2293193 |
| 33 | 3097415 |
| 34 | 6596787 |
| 35 | 8942350 |
| 36 | 19031088 |
| 37 | 25880367 |
| 38 | 55043561 |
| 39 | 75068945 |
| 40 | 159570624 |
| 41 | 218189681 |