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 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 16 |
| 5 | 30 |
| 6 | 58 |
| 7 | 112 |
| 8 | 216 |
| 9 | 400 |
| 10 | 740 |
| 11 | 1398 |
| 12 | 2638 |
| 13 | 4710 |
| 14 | 8444 |
| 15 | 15118 |
| 16 | 27690 |
| 17 | 48406 |
| 18 | 84382 |
| 19 | 146928 |
| 20 | 255844 |
| 21 | 402998 |
| 22 | 625824 |
| 23 | 956370 |
| 24 | 1447476 |
| 25 | 2066828 |
| 26 | 3225856 |
| 27 | 5020232 |
| 28 | 7823236 |
| 29 | 10975318 |
| 30 | 15264202 |
| 31 | 21500308 |
| 32 | 30004914 |
| 33 | 39030820 |
| 34 | 50728472 |
| 35 | 65402746 |
| 36 | 88886116 |