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A168562 as a simple table

n a(n)
0 1
1 1
2 2
3 18
4 244
5 5710
6 188908
7 8702820
8 524888040
9 40393084950
10 3853034107900
11 446671026849916
12 61824801560228056
13 10072685383683311116
14 1907978676359896992824
15 415795605119514578204616
16 103294156408291202467520976
17 29018125910193347265466916070

[1,1,2,18,244,5710,188908,8702820,524888040,
 40393084950,3853034107900,446671026849916,
 61824801560228056,10072685383683311116,
 1907978676359896992824,415795605119514578204616,
 103294156408291202467520976,
 29018125910193347265466916070]

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Last modified September 22 17:01 EDT 2021. Contains 347607 sequences. (Running on oeis4.)