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) |
|---|---|
| 1 | 17 |
| 2 | 89 |
| 3 | 432 |
| 4 | 1217 |
| 5 | 3283 |
| 6 | 7322 |
| 7 | 15504 |
| 8 | 28743 |
| 9 | 52389 |
| 10 | 87890 |
| 11 | 145070 |
| 12 | 225134 |
| 13 | 345639 |
| 14 | 507376 |
| 15 | 738960 |
| 16 | 1038003 |
| 17 | 1448418 |
| 18 | 1966975 |
| 19 | 2656248 |
| 20 | 3504620 |
| 21 | 4603324 |
| 22 | 5934897 |
| 23 | 7622356 |
| 24 | 9631810 |
| 25 | 12132029 |
| 26 | 15075684 |
| 27 | 18682566 |
| 28 | 22873460 |
| 29 | 27937667 |
| 30 | 33775988 |