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A196925 as a simple table

n a(n)
1 1
2 1
3 2
4 7
5 65
6 1242
7 55546
8 5603265
9 1280956817
10 661075536443
11 771059112373171
12 2031433178217758354 

[1,1,2,7,65,1242,55546,5603265,1280956817,
 661075536443,771059112373171,2031433178217758354]

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Last modified October 2 08:18 EDT 2023. Contains 365831 sequences. (Running on oeis4.)