n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 0 |
5 | 32 |
6 | -64 |
7 | 384 |
8 | -1280 |
9 | 5632 |
10 | -21504 |
11 | 88064 |
12 | -348160 |
13 | 1400832 |
14 | -5586944 |
15 | 22380544 |
16 | -89456640 |
17 | 357957632 |
18 | -1431568384 |
19 | 5726797824 |
20 | -22906142720 |
21 | 91626668032 |
22 | -366502477824 |
23 | 1466018299904 |
24 | -5864056422400 |
25 | 23456259244032 |
26 | -93824969867264 |
27 | 375300013686784 |
[1,1,4,0,32,-64,384,-1280,5632,-21504,88064, -348160,1400832,-5586944,22380544,-89456640, 357957632,-1431568384,5726797824,-22906142720, 91626668032,-366502477824,1466018299904, -5864056422400,23456259244032,-93824969867264, 375300013686784] |