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 | 1 |
| 1 | 14 |
| 2 | 77 |
| 3 | 280 |
| 4 | 798 |
| 5 | 1932 |
| 6 | 4158 |
| 7 | 8184 |
| 8 | 15015 |
| 9 | 26026 |
| 10 | 43043 |
| 11 | 68432 |
| 12 | 105196 |
| 13 | 157080 |
| 14 | 228684 |
| 15 | 325584 |
| 16 | 454461 |
| 17 | 623238 |
| 18 | 841225 |
| 19 | 1119272 |
| 20 | 1469930 |
| 21 | 1907620 |
| 22 | 2448810 |
| 23 | 3112200 |
| 24 | 3918915 |
| 25 | 4892706 |
| 26 | 6060159 |
| 27 | 7450912 |