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 | 0 |
| 3 | 34 |
| 4 | 2309 |
| 5 | 15056 |
| 6 | 45718 |
| 7 | 95776 |
| 8 | 164135 |
| 9 | 250132 |
| 10 | 353767 |
| 11 | 475040 |
| 12 | 613951 |
| 13 | 770500 |
| 14 | 944687 |
| 15 | 1136512 |
| 16 | 1345975 |
| 17 | 1573076 |
| 18 | 1817815 |
| 19 | 2080192 |
| 20 | 2360207 |
| 21 | 2657860 |
| 22 | 2973151 |
| 23 | 3306080 |
| 24 | 3656647 |
| 25 | 4024852 |
| 26 | 4410695 |
| 27 | 4814176 |
| 28 | 5235295 |
| 29 | 5674052 |
| 30 | 6130447 |
| 31 | 6604480 |