login

A142473 as a simple table

na(n)
11
2-1
32
44
5-6
66
7-36
844
9-36
1024
11576
12-600
13420
14-240
15120
16-14400
1713152
18-8100
194080
20-1800
21720
22518400
23-423360
24233856
25-105840
2642000
27-15120
285040
29-25401600
3018817920
31-9455040
323898944
33-1411200
34463680
35-141120
3640320
371625702400
38-1104606720
39510295680
40-193777920
4164653120
42-19595520
435503680
44-1451520
45362880

[1,-1,2,4,-6,6,-36,44,-36,24,576,-600,420,-240,
 120,-14400,13152,-8100,4080,-1800,720,518400,
 -423360,233856,-105840,42000,-15120,5040,
 -25401600,18817920,-9455040,3898944,-1411200,
 463680,-141120,40320,1625702400,-1104606720,
 510295680,-193777920,64653120,-19595520,5503680,
 -1451520,362880]