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A231192 as a simple table

n a(n)
1 9
2 67
3 538
4 4264
5 33868
6 268936
7 2135636
8 16959144
9 134673104
10 1069443392
11 8492483984
12 67439085424
13 535535922336
14 4252707792768
15 33770887846016
16 268175694518400
17 2129591719896640
18 16911155582525312
19 134292024365242368

[9,67,538,4264,33868,268936,2135636,16959144,
 134673104,1069443392,8492483984,67439085424,
 535535922336,4252707792768,33770887846016,
 268175694518400,2129591719896640,
 16911155582525312,134292024365242368]

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Last modified January 27 22:52 EST 2022. Contains 350654 sequences. (Running on oeis4.)