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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 6 |
| 9 | 11 |
| 10 | 16 |
| 11 | 21 |
| 12 | 61 |
| 13 | 136 |
| 14 | 246 |
| 15 | 391 |
| 16 | 856 |
| 17 | 1926 |
| 18 | 3886 |
| 19 | 7021 |
| 20 | 14146 |
| 21 | 30606 |
| 22 | 64276 |
| 23 | 125561 |
| 24 | 251147 |
| 25 | 527752 |
| 26 | 1115877 |
| 27 | 2273557 |
| 28 | 4611992 |
| 29 | 9583058 |
| 30 | 20198698 |
| 31 | 41982193 |
| 32 | 86481758 |
| 33 | 179676908 |
| 34 | 377608039 |
| 35 | 791559669 |
| 36 | 1649078139 |
| 37 | 3441054929 |