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A138196 as a simple table

n a(n)
1 1
2 0
3 0
4 2
5 4
6 9
7 18
8 36
9 60
10 105
11 210
12 324
13 648
14 1080
15 1680
16 2352
17 4704
18 6480
19 12960
20 18360
21 27200
22 43200
23 86400
24 110880
25 155232
26 243936
27 310464
28 423360
29 846720
30 1080000
31 2160000
32 2592000
33 3686400
34 5713920
35 7713792
36 9237888
37 18475776

[1,0,0,2,4,9,18,36,60,105,210,324,648,1080,1680,
 2352,4704,6480,12960,18360,27200,43200,86400,
 110880,155232,243936,310464,423360,846720,1080000,
 2160000,2592000,3686400,5713920,7713792,9237888,
 18475776]

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Last modified April 24 19:49 EDT 2024. Contains 371963 sequences. (Running on oeis4.)