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A155635 as a simple table

n a(n)
0 1
1 12
2 88
3 636
4 4720
5 35892
6 277768
7 2175276
8 17167840
9 136170852
10 1083507448
11 8638762716
12 68963617360
13 550976517012
14 4404150026728
15 35214889666956
16 281627564601280
17 2252562753138372
18 18018213206747608
19 144134261562183996

[1,12,88,636,4720,35892,277768,2175276,17167840,
 136170852,1083507448,8638762716,68963617360,
 550976517012,4404150026728,35214889666956,
 281627564601280,2252562753138372,
 18018213206747608,144134261562183996]

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Last modified March 8 20:14 EST 2021. Contains 341953 sequences. (Running on oeis4.)