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A246806
as a simple table
n
a(n)
0
1
1
4
2
33
3
285
4
2643
5
24920
6
239543
7
2327458
8
22801065
9
224608236
10
2222034266
11
22053438268
[1,4,33,285,2643,24920,239543,2327458,22801065, 224608236,2222034266,22053438268]
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Last modified April 25 12:15 EDT 2024. Contains 371969 sequences. (Running on oeis4.)