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 | 13 |
| 2 | 26 |
| 3 | 52 |
| 4 | 77 |
| 5 | 154 |
| 6 | 299 |
| 7 | 598 |
| 8 | 1187 |
| 9 | 2365 |
| 10 | 4721 |
| 11 | 5968 |
| 12 | 11657 |
| 13 | 23224 |
| 14 | 45458 |
| 15 | 90016 |
| 16 | 90185 |
| 17 | 91774 |
| 18 | 106553 |
| 19 | 120109 |
| 20 | 121238 |
| 21 | 233476 |
| 22 | 466943 |
| 23 | 811612 |
| 24 | 922880 |
| 25 | 945769 |
| 26 | 1402568 |
| 27 | 1527136 |
| 28 | 2650703 |
| 29 | 2674270 |
| 30 | 2898947 |
| 31 | 5377846 |
| 32 | 8834624 |
| 33 | 11179312 |