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A258294 as a simple table

n a(n)
0 1
1 1
2 9
3 127
4 2280
5 46262
6 1015691
7 23541165
8 567852809
9 14123231487
10 359874480333
11 9351900623083
12 247006639629275
13 6613877399621729
14 179171447281396640
15 4902895256737984134
16 135346525073067516814
17 3765244155890019687101
18 105465364199865165010867

[1,1,9,127,2280,46262,1015691,23541165,567852809,
 14123231487,359874480333,9351900623083,
 247006639629275,6613877399621729,
 179171447281396640,4902895256737984134,
 135346525073067516814,3765244155890019687101,
 105465364199865165010867]

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Last modified November 29 09:52 EST 2021. Contains 349416 sequences. (Running on oeis4.)