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 | 16 |
| 3 | 216 |
| 4 | 1280 |
| 5 | 5000 |
| 6 | 15120 |
| 7 | 38416 |
| 8 | 86016 |
| 9 | 174960 |
| 10 | 330000 |
| 11 | 585640 |
| 12 | 988416 |
| 13 | 1599416 |
| 14 | 2497040 |
| 15 | 3780000 |
| 16 | 5570560 |
| 17 | 8018016 |
| 18 | 11302416 |
| 19 | 15638520 |
| 20 | 21280000 |
| 21 | 28523880 |
| 22 | 37715216 |
| 23 | 49252016 |
| 24 | 63590400 |
| 25 | 81250000 |
| 26 | 102819600 |
| 27 | 128963016 |
| 28 | 160425216 |
| 29 | 198038680 |
| 30 | 242730000 |
| 31 | 295526720 |
| 32 | 357564416 |
| 33 | 430094016 |
| 34 | 514489360 |