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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 9 |
| 7 | 18 |
| 8 | 31 |
| 9 | 54 |
| 10 | 93 |
| 11 | 167 |
| 12 | 306 |
| 13 | 574 |
| 14 | 1088 |
| 15 | 2081 |
| 16 | 3998 |
| 17 | 7696 |
| 18 | 14792 |
| 19 | 28335 |
| 20 | 54049 |
| 21 | 102742 |
| 22 | 194948 |
| 23 | 369955 |
| 24 | 703335 |
| 25 | 1340834 |
| 26 | 2563781 |
| 27 | 4915378 |
| 28 | 9444799 |
| 29 | 18180238 |
| 30 | 35047841 |
| 31 | 67660623 |
| 32 | 130806130 |
| 33 | 253252243 |
| 34 | 491034479 |
| 35 | 953404380 |
| 36 | 1853513715 |
| 37 | 3607440034 |