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 | 2 |
| 2 | 9 |
| 3 | 24 |
| 4 | 85 |
| 5 | 202 |
| 6 | 429 |
| 7 | 1046 |
| 8 | 2145 |
| 9 | 4022 |
| 10 | 6955 |
| 11 | 11438 |
| 12 | 17927 |
| 13 | 26868 |
| 14 | 41817 |
| 15 | 62238 |
| 16 | 89715 |
| 17 | 125864 |
| 18 | 172459 |
| 19 | 231700 |
| 20 | 305753 |
| 21 | 409430 |
| 22 | 537577 |
| 23 | 695264 |
| 24 | 886875 |
| 25 | 1116878 |
| 26 | 1391945 |
| 27 | 1717032 |
| 28 | 2134089 |
| 29 | 2625830 |
| 30 | 3201035 |
| 31 | 3869292 |
| 32 | 4642295 |
| 33 | 5530982 |
| 34 | 6546651 |