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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 4 |
| 7 | 9 |
| 8 | 6 |
| 9 | 19 |
| 10 | 28 |
| 11 | 54 |
| 12 | 109 |
| 13 | 210 |
| 14 | 373 |
| 15 | 707 |
| 16 | 1316 |
| 17 | 2497 |
| 18 | 4827 |
| 19 | 9127 |
| 20 | 17467 |
| 21 | 33212 |
| 22 | 63161 |
| 23 | 121404 |
| 24 | 232455 |
| 25 | 446846 |
| 26 | 860466 |
| 27 | 1658020 |
| 28 | 3200462 |
| 29 | 6184814 |
| 30 | 11971998 |
| 31 | 23184215 |
| 32 | 44934259 |
| 33 | 87179855 |
| 34 | 169330402 |
| 35 | 329113635 |