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A209306 as a simple table

n a(n)
0 1
1 6
2 52
3 608
4 9000
5 161320
6 3395384
7 82067848
8 2239857464
9 68123898696
10 2284557569272
11 83741888125064
12 3330861429420984
13 142875672420718024
14 6574169480181294200
15 322998830024467434760
16 16876498518902786900792
17 934400728689236533139016

[1,6,52,608,9000,161320,3395384,82067848,
 2239857464,68123898696,2284557569272,
 83741888125064,3330861429420984,
 142875672420718024,6574169480181294200,
 322998830024467434760,16876498518902786900792,
 934400728689236533139016]

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Last modified September 18 13:54 EDT 2021. Contains 347527 sequences. (Running on oeis4.)