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 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 11 |
| 6 | 17 |
| 7 | 24 |
| 8 | 32 |
| 9 | 43 |
| 10 | 57 |
| 11 | 72 |
| 12 | 95 |
| 13 | 119 |
| 14 | 151 |
| 15 | 207 |
| 16 | 303 |
| 17 | 431 |
| 18 | 655 |
| 19 | 1039 |
| 20 | 1551 |
| 21 | 2447 |
| 22 | 3983 |
| 23 | 6031 |
| 24 | 9615 |
| 25 | 15759 |
| 26 | 23951 |
| 27 | 38287 |
| 28 | 62863 |
| 29 | 95631 |
| 30 | 152975 |
| 31 | 251279 |
| 32 | 382351 |
| 33 | 611727 |
| 34 | 1004943 |
| 35 | 1529231 |
| 36 | 2446735 |
| 37 | 4019599 |
| 38 | 6116751 |
| 39 | 9786767 |
| 40 | 16078223 |