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 | -2 |
| 3 | 6 |
| 4 | 28 |
| 5 | 70 |
| 6 | 138 |
| 7 | 238 |
| 8 | 376 |
| 9 | 558 |
| 10 | 790 |
| 11 | 1078 |
| 12 | 1428 |
| 13 | 1846 |
| 14 | 2338 |
| 15 | 2910 |
| 16 | 3568 |
| 17 | 4318 |
| 18 | 5166 |
| 19 | 6118 |
| 20 | 7180 |
| 21 | 8358 |
| 22 | 9658 |
| 23 | 11086 |
| 24 | 12648 |
| 25 | 14350 |
| 26 | 16198 |
| 27 | 18198 |
| 28 | 20356 |
| 29 | 22678 |
| 30 | 25170 |
| 31 | 27838 |
| 32 | 30688 |
| 33 | 33726 |
| 34 | 36958 |
| 35 | 40390 |
| 36 | 44028 |
| 37 | 47878 |