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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 8 |
| 7 | 16 |
| 8 | 32 |
| 9 | 64 |
| 10 | 128 |
| 11 | 255 |
| 12 | 509 |
| 13 | 1017 |
| 14 | 2032 |
| 15 | 4060 |
| 16 | 8112 |
| 17 | 16208 |
| 18 | 32384 |
| 19 | 64704 |
| 20 | 129280 |
| 21 | 258304 |
| 22 | 516098 |
| 23 | 1031177 |
| 24 | 2060318 |
| 25 | 4116568 |
| 26 | 8225008 |
| 27 | 16433776 |
| 28 | 32835104 |
| 29 | 65605376 |
| 30 | 131081216 |
| 31 | 261903618 |
| 32 | 523290119 |
| 33 | 1045547025 |
| 34 | 2089029664 |
| 35 | 4173934632 |
| 36 | 8339628016 |