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A156448
as a simple table
n
a(n)
1
1
2
2
3
8
4
68
5
868
6
19436
7
638012
8
57507580
9
22620401127
10
17074878770018
11
18408433074826454
[1,2,8,68,868,19436,638012,57507580,22620401127, 17074878770018,18408433074826454]
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Last modified April 24 07:22 EDT 2024. Contains 371922 sequences. (Running on oeis4.)