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A090139 as a simple table

n a(n)
0 1
1 5
2 30
3 200
4 1400
5 10000
6 72000
7 520000
8 3760000
9 27200000
10 196800000
11 1424000000
12 10304000000
13 74560000000
14 539520000000
15 3904000000000
16 28249600000000
17 204416000000000
18 1479168000000000
19 10703360000000000

[1,5,30,200,1400,10000,72000,520000,3760000,
 27200000,196800000,1424000000,10304000000,
 74560000000,539520000000,3904000000000,
 28249600000000,204416000000000,1479168000000000,
 10703360000000000]

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Last modified February 3 21:17 EST 2023. Contains 360045 sequences. (Running on oeis4.)