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 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 4 |
| 11 | 8 |
| 12 | 16 |
| 13 | 32 |
| 14 | 64 |
| 15 | 128 |
| 16 | 256 |
| 17 | 768 |
| 18 | 2304 |
| 19 | 6912 |
| 20 | 20736 |
| 21 | 62208 |
| 22 | 186624 |
| 23 | 559872 |
| 24 | 1679616 |
| 25 | 6718464 |
| 26 | 26873856 |
| 27 | 107495424 |
| 28 | 429981696 |
| 29 | 1719926784 |
| 30 | 6879707136 |
| 31 | 27518828544 |
| 32 | 110075314176 |
| 33 | 550376570880 |
| 34 | 2751882854400 |
| 35 | 13759414272000 |