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 | 5 |
| 2 | 9 |
| 3 | 16 |
| 4 | 29 |
| 5 | 52 |
| 6 | 94 |
| 7 | 169 |
| 8 | 305 |
| 9 | 549 |
| 10 | 990 |
| 11 | 1783 |
| 12 | 3214 |
| 13 | 5790 |
| 14 | 10435 |
| 15 | 18801 |
| 16 | 33881 |
| 17 | 61048 |
| 18 | 110009 |
| 19 | 198224 |
| 20 | 357194 |
| 21 | 643633 |
| 22 | 1159797 |
| 23 | 2089869 |
| 24 | 3765830 |
| 25 | 6785771 |
| 26 | 12227562 |
| 27 | 22033274 |
| 28 | 39702627 |
| 29 | 71541613 |
| 30 | 128913593 |
| 31 | 232294192 |
| 32 | 418579765 |