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 | 3 |
| 3 | 8 |
| 4 | 17 |
| 5 | 34 |
| 6 | 68 |
| 7 | 123 |
| 8 | 219 |
| 9 | 382 |
| 10 | 642 |
| 11 | 1055 |
| 12 | 1713 |
| 13 | 2713 |
| 14 | 4241 |
| 15 | 6545 |
| 16 | 9950 |
| 17 | 14953 |
| 18 | 22255 |
| 19 | 32752 |
| 20 | 47774 |
| 21 | 69104 |
| 22 | 99114 |
| 23 | 141094 |
| 24 | 199489 |
| 25 | 280096 |
| 26 | 390836 |
| 27 | 542170 |
| 28 | 747793 |
| 29 | 1025912 |
| 30 | 1400425 |
| 31 | 1902267 |
| 32 | 2572095 |
| 33 | 3462556 |
| 34 | 4641516 |
| 35 | 6196830 |
| 36 | 8241460 |
| 37 | 10919755 |
| 38 | 14416885 |