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 | 5 |
| 3 | 15 |
| 4 | 36 |
| 5 | 76 |
| 6 | 147 |
| 7 | 267 |
| 8 | 462 |
| 9 | 769 |
| 10 | 1240 |
| 11 | 1947 |
| 12 | 2988 |
| 13 | 4496 |
| 14 | 6649 |
| 15 | 9683 |
| 16 | 13909 |
| 17 | 19734 |
| 18 | 27686 |
| 19 | 38447 |
| 20 | 52892 |
| 21 | 72138 |
| 22 | 97604 |
| 23 | 131084 |
| 24 | 174835 |
| 25 | 231687 |
| 26 | 305173 |
| 27 | 399687 |
| 28 | 520675 |
| 29 | 674865 |
| 30 | 870540 |
| 31 | 1117869 |
| 32 | 1429298 |
| 33 | 1820018 |
| 34 | 2308521 |
| 35 | 2917260 |
| 36 | 3673428 |
| 37 | 4609885 |
| 38 | 5766245 |