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A037566 as a simple table

n a(n)
1 2
2 20
3 181
4 1631
5 14681
6 132130
7 1189172
8 10702550
9 96322951
10 866906561
11 7802159051
12 70219431460
13 631974883142
14 5687773948280
15 51189965534521
16 460709689810691
17 4146387208296221

[2,20,181,1631,14681,132130,1189172,10702550,
 96322951,866906561,7802159051,70219431460,
 631974883142,5687773948280,51189965534521,
 460709689810691,4146387208296221]

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Last modified January 26 11:13 EST 2020. Contains 331279 sequences. (Running on oeis4.)