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 | 4 |
| 2 | 14 |
| 3 | 44 |
| 4 | 127 |
| 5 | 335 |
| 6 | 830 |
| 7 | 1931 |
| 8 | 4258 |
| 9 | 8943 |
| 10 | 17984 |
| 11 | 34765 |
| 12 | 64873 |
| 13 | 117220 |
| 14 | 205718 |
| 15 | 351552 |
| 16 | 586348 |
| 17 | 956393 |
| 18 | 1528350 |
| 19 | 2396631 |
| 20 | 3693123 |
| 21 | 5599550 |
| 22 | 8363304 |
| 23 | 12317274 |
| 24 | 17904795 |
| 25 | 25710327 |
| 26 | 36497466 |
| 27 | 51255153 |
| 28 | 71253960 |
| 29 | 98113791 |
| 30 | 133885404 |
| 31 | 181147299 |
| 32 | 243121170 |
| 33 | 323807952 |
| 34 | 428148174 |