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A064626 as a simple table

n a(n)
1 1
2 2
3 7
4 40
5 355
6 3678
7 37263
8 361058
9 3403613
10 31653377
11 292547199
12 2696619716

[1,2,7,40,355,3678,37263,361058,3403613,31653377,
 292547199,2696619716]

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Last modified July 24 20:26 EDT 2021. Contains 346273 sequences. (Running on oeis4.)