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A144011 as a simple table

n a(n)
0 1
1 1
2 2
3 10
4 72
5 704
6 8640
7 127968
8 2220288
9 44179200
10 991802880
11 24799656960
12 683533762560
13 20589288993792
14 672920058230784
15 23717386619136000
16 896730039462297600
17 36203980633475973120
18 1554541449858851143680

[1,1,2,10,72,704,8640,127968,2220288,44179200,
 991802880,24799656960,683533762560,20589288993792,
 672920058230784,23717386619136000,
 896730039462297600,36203980633475973120,
 1554541449858851143680]

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Last modified April 16 10:45 EDT 2024. Contains 371709 sequences. (Running on oeis4.)