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 | 10 |
| 2 | 56 |
| 3 | 231 |
| 4 | 782 |
| 5 | 2299 |
| 6 | 6074 |
| 7 | 14751 |
| 8 | 33454 |
| 9 | 71677 |
| 10 | 146359 |
| 11 | 286762 |
| 12 | 542042 |
| 13 | 992776 |
| 14 | 1768216 |
| 15 | 3071725 |
| 16 | 5217765 |
| 17 | 8685019 |
| 18 | 14191826 |
| 19 | 22802195 |
| 20 | 36073378 |
| 21 | 56259488 |
| 22 | 86590156 |
| 23 | 131648984 |
| 24 | 197883889 |
| 25 | 294290729 |
| 26 | 433323334 |
| 27 | 632097807 |
| 28 | 913977420 |
| 29 | 1310647455 |
| 30 | 1864817969 |