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 | 4 |
| 3 | 10 |
| 4 | 24 |
| 5 | 47 |
| 6 | 93 |
| 7 | 162 |
| 8 | 283 |
| 9 | 462 |
| 10 | 747 |
| 11 | 1154 |
| 12 | 1779 |
| 13 | 2642 |
| 14 | 3908 |
| 15 | 5643 |
| 16 | 8098 |
| 17 | 11398 |
| 18 | 15975 |
| 19 | 22030 |
| 20 | 30253 |
| 21 | 41027 |
| 22 | 55379 |
| 23 | 73983 |
| 24 | 98455 |
| 25 | 129838 |
| 26 | 170578 |
| 27 | 222447 |
| 28 | 289009 |
| 29 | 373064 |
| 30 | 479970 |
| 31 | 613962 |
| 32 | 782893 |
| 33 | 993349 |
| 34 | 1256546 |
| 35 | 1582466 |
| 36 | 1987365 |
| 37 | 2485840 |
| 38 | 3101146 |