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 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 11 |
| 5 | 30 |
| 6 | 64 |
| 7 | 178 |
| 8 | 382 |
| 9 | 758 |
| 10 | 1367 |
| 11 | 3620 |
| 12 | 7193 |
| 13 | 19707 |
| 14 | 40867 |
| 15 | 75706 |
| 16 | 130017 |
| 17 | 339506 |
| 18 | 667390 |
| 19 | 1824656 |
| 20 | 3724917 |
| 21 | 6785689 |
| 22 | 11545898 |
| 23 | 30099090 |
| 24 | 58833294 |
| 25 | 105348580 |
| 26 | 176098677 |
| 27 | 282847446 |
| 28 | 438090287 |
| 29 | 1095200628 |
| 30 | 2057512312 |
| 31 | 5494259815 |
| 32 | 10925293558 |
| 33 | 19311381148 |