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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 3 |
| 8 | 2 |
| 9 | 12 |
| 10 | 14 |
| 11 | 50 |
| 12 | 97 |
| 13 | 312 |
| 14 | 744 |
| 15 | 2291 |
| 16 | 6186 |
| 17 | 18714 |
| 18 | 53793 |
| 19 | 162565 |
| 20 | 482416 |
| 21 | 1467094 |
| 22 | 4436536 |
| 23 | 13594266 |
| 24 | 41640513 |
| 25 | 128564463 |
| 26 | 397590126 |
| 27 | 1236177615 |
| 28 | 3852339237 |
| 29 | 12053032356 |
| 30 | 37802482958 |
| 31 | 118936687722 |
| 32 | 375079338476 |