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 | 0 |
| 1 | 3 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 15 |
| 6 | 24 |
| 7 | 39 |
| 8 | 63 |
| 9 | 102 |
| 10 | 165 |
| 11 | 267 |
| 12 | 432 |
| 13 | 699 |
| 14 | 1131 |
| 15 | 1830 |
| 16 | 2961 |
| 17 | 4791 |
| 18 | 7752 |
| 19 | 12543 |
| 20 | 20295 |
| 21 | 32838 |
| 22 | 53133 |
| 23 | 85971 |
| 24 | 139104 |
| 25 | 225075 |
| 26 | 364179 |
| 27 | 589254 |
| 28 | 953433 |
| 29 | 1542687 |
| 30 | 2496120 |
| 31 | 4038807 |
| 32 | 6534927 |
| 33 | 10573734 |
| 34 | 17108661 |
| 35 | 27682395 |
| 36 | 44791056 |
| 37 | 72473451 |
| 38 | 117264507 |