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 | 0 |
| 2 | 6 |
| 3 | 28 |
| 4 | 96 |
| 5 | 240 |
| 6 | 518 |
| 7 | 980 |
| 8 | 1712 |
| 9 | 2784 |
| 10 | 4310 |
| 11 | 6380 |
| 12 | 9136 |
| 13 | 12688 |
| 14 | 17206 |
| 15 | 22820 |
| 16 | 29728 |
| 17 | 38080 |
| 18 | 48102 |
| 19 | 59964 |
| 20 | 73920 |
| 21 | 90160 |
| 22 | 108966 |
| 23 | 130548 |
| 24 | 155216 |
| 25 | 183200 |
| 26 | 214838 |
| 27 | 250380 |
| 28 | 290192 |
| 29 | 334544 |
| 30 | 383830 |
| 31 | 438340 |
| 32 | 498496 |
| 33 | 564608 |
| 34 | 637126 |