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 | 3 |
| 3 | 6 |
| 4 | 14 |
| 5 | 25 |
| 6 | 56 |
| 7 | 97 |
| 8 | 198 |
| 9 | 354 |
| 10 | 672 |
| 11 | 1170 |
| 12 | 2207 |
| 13 | 3762 |
| 14 | 6786 |
| 15 | 11675 |
| 16 | 20524 |
| 17 | 34636 |
| 18 | 60258 |
| 19 | 100580 |
| 20 | 171894 |
| 21 | 285820 |
| 22 | 480497 |
| 23 | 791316 |
| 24 | 1321346 |
| 25 | 2156830 |
| 26 | 3557353 |
| 27 | 5783660 |
| 28 | 9452658 |
| 29 | 15250216 |
| 30 | 24771526 |
| 31 | 39713788 |
| 32 | 64011924 |
| 33 | 102199026 |
| 34 | 163583054 |
| 35 | 259745051 |