The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 48 |
| 3 | 1792 |
| 4 | 61440 |
| 5 | 2031616 |
| 6 | 66060288 |
| 7 | 2130706432 |
| 8 | 68451041280 |
| 9 | 2194728288256 |
| 10 | 70300024700928 |
| 11 | 2250700302057472 |
| 12 | 72040001851883520 |
| 13 | 2305561534236983296 |
| 14 | 73782472695210835968 |
| 15 | 2361111183840784678912 |
| 16 | 75556710804409716572160 |
| 17 | 2417833192485184639860736 |
[0,1,48,1792,61440,2031616,66060288,2130706432, 68451041280,2194728288256,70300024700928, 2250700302057472,72040001851883520, 2305561534236983296,73782472695210835968, 2361111183840784678912,75556710804409716572160, 2417833192485184639860736] |