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A167999 as a simple table

n a(n)
1 1
2 3
3 10
4 46
5 264
6 1773
7 13719
8 120770
9 1190358
10 12961563
11 154466259
12 2000471830
13 27980585221

[1,3,10,46,264,1773,13719,120770,1190358,12961563,
 154466259,2000471830,27980585221]

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Last modified May 5 17:26 EDT 2021. Contains 343572 sequences. (Running on oeis4.)