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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 32 |
| 7 | 64 |
| 8 | 128 |
| 9 | 256 |
| 10 | 512 |
| 11 | 1023 |
| 12 | 2045 |
| 13 | 4088 |
| 14 | 8172 |
| 15 | 16336 |
| 16 | 32656 |
| 17 | 65280 |
| 18 | 130496 |
| 19 | 260864 |
| 20 | 521473 |
| 21 | 1042434 |
| 22 | 2083846 |
| 23 | 4165649 |
| 24 | 8327214 |
| 25 | 16646264 |
| 26 | 33276208 |
| 27 | 66519792 |
| 28 | 132974368 |
| 29 | 265818368 |
| 30 | 531376129 |
| 31 | 1062231296 |
| 32 | 2123421181 |
| 33 | 4244760561 |
| 34 | 8485359561 |
| 35 | 16962400080 |
| 36 | 33908170232 |
| 37 | 67783096912 |