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 | 3 |
| 2 | 11 |
| 3 | 26 |
| 4 | 59 |
| 5 | 122 |
| 6 | 254 |
| 7 | 514 |
| 8 | 1042 |
| 9 | 2099 |
| 10 | 4222 |
| 11 | 8458 |
| 12 | 16922 |
| 13 | 33854 |
| 14 | 67714 |
| 15 | 135446 |
| 16 | 270899 |
| 17 | 541826 |
| 18 | 1083662 |
| 19 | 2167378 |
| 20 | 4334786 |
| 21 | 8669582 |
| 22 | 17339186 |
| 23 | 34678394 |
| 24 | 69356842 |
| 25 | 138713714 |
| 26 | 277427434 |
| 27 | 554854882 |
| 28 | 1109709778 |
| 29 | 2219419582 |
| 30 | 4438839194 |
| 31 | 8877678518 |
| 32 | 17755357054 |
| 33 | 35510714138 |
| 34 | 71021428318 |
| 35 | 142042856702 |
| 36 | 284085713438 |