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 | 15 |
| 5 | 24 |
| 6 | 32 |
| 7 | 41 |
| 8 | 55 |
| 9 | 79 |
| 10 | 126 |
| 11 | 220 |
| 12 | 406 |
| 13 | 778 |
| 14 | 1524 |
| 15 | 3057 |
| 16 | 6310 |
| 17 | 13211 |
| 18 | 27500 |
| 19 | 56246 |
| 20 | 113003 |
| 21 | 224220 |
| 22 | 442106 |
| 23 | 870323 |
| 24 | 1715503 |
| 25 | 3391092 |
| 26 | 6726084 |
| 27 | 13382357 |
| 28 | 26686192 |
| 29 | 53286329 |
| 30 | 106469764 |
| 31 | 212803832 |
| 32 | 425434124 |
| 33 | 850676115 |
| 34 | 1701169724 |
| 35 | 3402169203 |
| 36 | 6804150711 |
| 37 | 13608072837 |
| 38 | 27215890383 |
| 39 | 54431527170 |