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) |
|---|---|
| 3 | 2 |
| 4 | 17 |
| 5 | 71 |
| 6 | 212 |
| 7 | 518 |
| 8 | 1106 |
| 9 | 2142 |
| 10 | 3852 |
| 11 | 6534 |
| 12 | 10571 |
| 13 | 16445 |
| 14 | 24752 |
| 15 | 36218 |
| 16 | 51716 |
| 17 | 72284 |
| 18 | 99144 |
| 19 | 133722 |
| 20 | 177669 |
| 21 | 232883 |
| 22 | 301532 |
| 23 | 386078 |
| 24 | 489302 |
| 25 | 614330 |
| 26 | 764660 |
| 27 | 944190 |
| 28 | 1157247 |
| 29 | 1408617 |
| 30 | 1703576 |