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A274970
as a simple table
n
a(n)
0
1
1
1
2
2
3
6
4
24
5
120
6
698
7
4393
8
28551
9
187403
10
1231517
11
8080058
12
52905865
13
345820994
[1,1,2,6,24,120,698,4393,28551,187403,1231517, 8080058,52905865,345820994]
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Last modified April 24 10:00 EDT 2024. Contains 371935 sequences. (Running on oeis4.)
