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) |
|---|---|
| 0 | 0 |
| 1 | 4 |
| 2 | 56 |
| 3 | 216 |
| 4 | 544 |
| 5 | 1100 |
| 6 | 1944 |
| 7 | 3136 |
| 8 | 4736 |
| 9 | 6804 |
| 10 | 9400 |
| 11 | 12584 |
| 12 | 16416 |
| 13 | 20956 |
| 14 | 26264 |
| 15 | 32400 |
| 16 | 39424 |
| 17 | 47396 |
| 18 | 56376 |
| 19 | 66424 |
| 20 | 77600 |
| 21 | 89964 |
| 22 | 103576 |
| 23 | 118496 |
| 24 | 134784 |
| 25 | 152500 |
| 26 | 171704 |
| 27 | 192456 |
| 28 | 214816 |
| 29 | 238844 |
| 30 | 264600 |
| 31 | 292144 |
| 32 | 321536 |
| 33 | 352836 |
| 34 | 386104 |
| 35 | 421400 |
| 36 | 458784 |
| 37 | 498316 |
| 38 | 540056 |