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 | 32 |
| 6 | 64 |
| 7 | 128 |
| 8 | 256 |
| 9 | 512 |
| 10 | 1024 |
| 11 | 2047 |
| 12 | 4083 |
| 13 | 8100 |
| 14 | 15914 |
| 15 | 30827 |
| 16 | 58651 |
| 17 | 109294 |
| 18 | 199140 |
| 19 | 354522 |
| 20 | 616666 |
| 21 | 1048576 |
| 22 | 1744436 |
| 23 | 2842226 |
| 24 | 4540386 |
| 25 | 7119516 |
| 26 | 10970272 |
| 27 | 16628809 |
| 28 | 24821333 |
| 29 | 36519556 |
| 30 | 53009102 |
| 31 | 75973189 |
| 32 | 107594213 |
| 33 | 150676186 |
| 34 | 208791332 |