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A180188 as a simple table

n a(n)
1 1
2 0
3 2
4 3
5 0
6 3
7 8
8 12
9 0
10 4
11 45
12 40
13 30
14 0
15 5
16 264
17 270
18 120
19 60
20 0
21 6
22 1855
23 1848
24 945
25 280
26 105
27 0
28 7
29 14832
30 14840
31 7392
32 2520
33 560
34 168
35 0
36 8
37 133497
38 133488
39 66780
40 22176
41 5670
42 1008
43 252
44 0
45 9
46 1334960
47 1334970
48 667440
49 222600
50 55440
51 11340
52 1680
53 360
54 0

[1,0,2,3,0,3,8,12,0,4,45,40,30,0,5,264,270,120,60,
 0,6,1855,1848,945,280,105,0,7,14832,14840,7392,
 2520,560,168,0,8,133497,133488,66780,22176,5670,
 1008,252,0,9,1334960,1334970,667440,222600,55440,
 11340,1680,360,0]

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Last modified May 22 06:32 EDT 2019. Contains 323478 sequences. (Running on oeis4.)