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 | 126 |
| 1 | 2772 |
| 2 | 48048 |
| 3 | 772200 |
| 4 | 12033450 |
| 5 | 184940756 |
| 6 | 2824549728 |
| 7 | 43028530272 |
| 8 | 655081791000 |
| 9 | 9977399586000 |
| 10 | 152112583402560 |
| 11 | 2322021633001200 |
| 12 | 35496198345658050 |
| 13 | 543418421128852500 |
| 14 | 8331507823355640000 |
| 15 | 127919340117331963200 |
| 16 | 1966759854303978934200 |
| 17 | 30279186980267369086800 |