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A266863 as a simple table

n a(n)
1 2
2 39
3 999
4 31501
5 1115170
6 41983402
7 1645807004
8 66428315332
9 2741553615797
10 115161107816709
11 4907346217889770
12 211619921457504517
13 9217713218166541066
14 404959978196608770290
15 17923299357990007812631
16 798420742078293208625630 

[2,39,999,31501,1115170,41983402,1645807004,
 66428315332,2741553615797,115161107816709,
 4907346217889770,211619921457504517,
 9217713218166541066,404959978196608770290,
 17923299357990007812631,798420742078293208625630]

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Last modified April 25 06:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)