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A000281 as a simple table

n a(n)
0 1
1 3
2 57
3 2763
4 250737
5 36581523
6 7828053417
7 2309644635483
8 898621108880097
9 445777636063460643
10 274613643571568682777
11 205676334188681975553003
12 184053312545818735778213457
13 193944394596325636374396208563 

[1,3,57,2763,250737,36581523,7828053417,
 2309644635483,898621108880097,445777636063460643,
 274613643571568682777,205676334188681975553003,
 184053312545818735778213457,
 193944394596325636374396208563]

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Last modified May 1 23:54 EDT 2024. Contains 372178 sequences. (Running on oeis4.)