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) |
|---|---|
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 3 |
| 9 | 8 |
| 10 | 22 |
| 11 | 61 |
| 12 | 168 |
| 13 | 465 |
| 14 | 1302 |
| 15 | 3659 |
| 16 | 10329 |
| 17 | 29247 |
| 18 | 83076 |
| 19 | 236567 |
| 20 | 675191 |
| 21 | 1930857 |
| 22 | 5531409 |
| 23 | 15870783 |
| 24 | 45600643 |
| 25 | 131187583 |
| 26 | 377844713 |
| 27 | 1089401822 |
| 28 | 3143970659 |
| 29 | 9081351051 |
| 30 | 26252708661 |
| 31 | 75949137535 |
| 32 | 219873546468 |
| 33 | 636947053248 |
| 34 | 1846268556446 |
| 35 | 5354642063044 |