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 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 12 |
| 7 | 18 |
| 8 | 34 |
| 9 | 54 |
| 10 | 100 |
| 11 | 170 |
| 12 | 310 |
| 13 | 542 |
| 14 | 1000 |
| 15 | 1786 |
| 16 | 3292 |
| 17 | 5990 |
| 18 | 11100 |
| 19 | 20434 |
| 20 | 38102 |
| 21 | 70858 |
| 22 | 132912 |
| 23 | 249290 |
| 24 | 470300 |
| 25 | 888158 |
| 26 | 1684488 |
| 27 | 3199258 |
| 28 | 6095502 |
| 29 | 11631550 |
| 30 | 22249232 |
| 31 | 42621834 |
| 32 | 81804946 |
| 33 | 157221374 |
| 34 | 302632804 |
| 35 | 583237734 |
| 36 | 1125468466 |
| 37 | 2174144774 |