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A145925 as a simple table

n a(n)
1 1
2 1
3 9
4 33
5 404
6 7941
7 262632
8 14831415
9 1538127410
10 275592188347
11 87279885007004
12 48561755814534966
13 47514836691753883015
14 81822578894266356858585 

[1,1,9,33,404,7941,262632,14831415,1538127410,
 275592188347,87279885007004,48561755814534966,
 47514836691753883015,81822578894266356858585]

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)