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A162974 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 2
5 0
6 6
7 0
8 3
9 24
10 20
11 0
12 160
13 90
14 0
15 15
16 1140
17 504
18 210
19 0
20 8988
21 4480
22 1260
23 0
24 105
25 80864
26 41040
27 9072
28 2520
29 0
30 809856
31 404460
32 100800
33 18900
34 0
35 945
36 8907480
37 4447520
38 1128600
39 166320
40 34650
41 0
42 106877320
43 53450496
44 13347180
45 2217600

[1,0,0,1,2,0,6,0,3,24,20,0,160,90,0,15,1140,504,
 210,0,8988,4480,1260,0,105,80864,41040,9072,2520,
 0,809856,404460,100800,18900,0,945,8907480,
 4447520,1128600,166320,34650,0,106877320,53450496,
 13347180,2217600]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)