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 | 1 |
| 2 | 5 |
| 3 | 5 |
| 4 | 6 |
| 5 | 9 |
| 6 | 14 |
| 7 | 24 |
| 8 | 44 |
| 9 | 81 |
| 10 | 156 |
| 11 | 306 |
| 12 | 602 |
| 13 | 1192 |
| 14 | 2370 |
| 15 | 4720 |
| 16 | 9415 |
| 17 | 18797 |
| 18 | 37547 |
| 19 | 75032 |
| 20 | 149981 |
| 21 | 299846 |
| 22 | 599534 |
| 23 | 1198852 |
| 24 | 2397405 |
| 25 | 4794400 |
| 26 | 9588236 |
| 27 | 19175692 |
| 28 | 38350310 |
| 29 | 76699140 |
| 30 | 153396236 |
| 31 | 306789653 |
| 32 | 613575417 |
| 33 | 1227145465 |
| 34 | 2454283522 |
| 35 | 4908556821 |