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 | 3 |
| 2 | 8 |
| 3 | 18 |
| 4 | 38 |
| 5 | 74 |
| 6 | 139 |
| 7 | 249 |
| 8 | 434 |
| 9 | 734 |
| 10 | 1215 |
| 11 | 1967 |
| 12 | 3132 |
| 13 | 4902 |
| 14 | 7567 |
| 15 | 11523 |
| 16 | 17345 |
| 17 | 25815 |
| 18 | 38045 |
| 19 | 55535 |
| 20 | 80377 |
| 21 | 115379 |
| 22 | 164389 |
| 23 | 232539 |
| 24 | 326774 |
| 25 | 456286 |
| 26 | 633373 |
| 27 | 874213 |
| 28 | 1200228 |
| 29 | 1639418 |
| 30 | 2228546 |
| 31 | 3015360 |
| 32 | 4062065 |
| 33 | 5448995 |
| 34 | 7280060 |
| 35 | 9688718 |
| 36 | 12846507 |
| 37 | 16972577 |