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 | 31 |
| 2 | 44 |
| 3 | 88 |
| 4 | 176 |
| 5 | 343 |
| 6 | 677 |
| 7 | 1354 |
| 8 | 2699 |
| 9 | 5398 |
| 10 | 8987 |
| 11 | 16876 |
| 12 | 33554 |
| 13 | 67009 |
| 14 | 67688 |
| 15 | 134476 |
| 16 | 268943 |
| 17 | 503632 |
| 18 | 526988 |
| 19 | 783877 |
| 20 | 1161665 |
| 21 | 2277331 |
| 22 | 3500708 |
| 23 | 3504286 |
| 24 | 3738854 |
| 25 | 7084642 |
| 26 | 7329320 |
| 27 | 7552699 |
| 28 | 10109498 |
| 29 | 10224397 |
| 30 | 11447876 |
| 31 | 22894654 |
| 32 | 45340343 |