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 | 5 |
| 3 | 10 |
| 4 | 22 |
| 5 | 38 |
| 6 | 110 |
| 7 | 178 |
| 8 | 378 |
| 9 | 698 |
| 10 | 1766 |
| 11 | 2618 |
| 12 | 7442 |
| 13 | 11006 |
| 14 | 26482 |
| 15 | 58226 |
| 16 | 123698 |
| 17 | 178310 |
| 18 | 502490 |
| 19 | 719802 |
| 20 | 1814954 |
| 21 | 3737154 |
| 22 | 8601674 |
| 23 | 11944562 |
| 24 | 33535586 |
| 25 | 54001022 |
| 26 | 120654206 |
| 27 | 217935362 |
| 28 | 518197346 |
| 29 | 718356542 |
| 30 | 2441734706 |
| 31 | 3392584002 |
| 32 | 7055236194 |
| 33 | 13981570658 |