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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 2 |
| 7 | 3 |
| 8 | 4 |
| 9 | 6 |
| 10 | 10 |
| 11 | 15 |
| 12 | 27 |
| 13 | 46 |
| 14 | 89 |
| 15 | 192 |
| 16 | 390 |
| 17 | 864 |
| 18 | 2304 |
| 19 | 5718 |
| 20 | 16444 |
| 21 | 53250 |
| 22 | 173682 |
| 23 | 618784 |
| 24 | 2556284 |
| 25 | 11086968 |
| 26 | 53466624 |
| 27 | 299016608 |
| 28 | 1780751883 |
| 29 | 11784471548 |
| 30 | 94036004868 |
| 31 | 795888123110 |
| 32 | 7723778471936 |
| 33 | 91117574462854 |
| 34 | 1168225267521350 |