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 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 8 |
| 10 | 15 |
| 11 | 29 |
| 12 | 57 |
| 13 | 113 |
| 14 | 225 |
| 15 | 449 |
| 16 | 897 |
| 17 | 1793 |
| 18 | 3578 |
| 19 | 7141 |
| 20 | 14253 |
| 21 | 28449 |
| 22 | 56785 |
| 23 | 113345 |
| 24 | 226241 |
| 25 | 451585 |
| 26 | 901377 |
| 27 | 1799176 |
| 28 | 3591211 |
| 29 | 7168169 |
| 30 | 14307889 |
| 31 | 28558993 |
| 32 | 57004641 |
| 33 | 113783041 |
| 34 | 227114497 |
| 35 | 453327617 |
| 36 | 904856058 |
| 37 | 1806120905 |