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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 4 |
| 6 | 8 |
| 7 | 12 |
| 8 | 24 |
| 9 | 48 |
| 10 | 84 |
| 11 | 168 |
| 12 | 336 |
| 13 | 624 |
| 14 | 1248 |
| 15 | 2496 |
| 16 | 4776 |
| 17 | 9552 |
| 18 | 19104 |
| 19 | 37152 |
| 20 | 74304 |
| 21 | 148608 |
| 22 | 291768 |
| 23 | 583536 |
| 24 | 1167072 |
| 25 | 2304912 |
| 26 | 4609824 |
| 27 | 9219648 |
| 28 | 18277776 |
| 29 | 36555552 |
| 30 | 73111104 |
| 31 | 145309104 |
| 32 | 290618208 |
| 33 | 581236416 |
| 34 | 1157215824 |
| 35 | 2314431648 |
| 36 | 4628863296 |