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 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 13 |
| 6 | 21 |
| 7 | 48 |
| 8 | 89 |
| 9 | 180 |
| 10 | 355 |
| 11 | 707 |
| 12 | 1382 |
| 13 | 2758 |
| 14 | 5448 |
| 15 | 10786 |
| 16 | 21391 |
| 17 | 42476 |
| 18 | 84291 |
| 19 | 167516 |
| 20 | 333036 |
| 21 | 662153 |
| 22 | 1317687 |
| 23 | 2622706 |
| 24 | 5221951 |
| 25 | 10400350 |
| 26 | 20720877 |
| 27 | 41288823 |
| 28 | 82294979 |
| 29 | 164052035 |
| 30 | 327088649 |
| 31 | 652238016 |
| 32 | 1300788712 |
| 33 | 2594486045 |
| 34 | 5175378128 |
| 35 | 10324522020 |