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A222718 as a simple table

n a(n)
1 0
2 6
3 30
4 666
5 6524
6 103378
7 1250904
8 17976376
9 235892592
10 3296371800
11 44713314784
12 621198984864
13 8554092568512
14 118954438125472
15 1651089670102400
16 23021868920182656
17 321109217833684736
18 4490028930013194112

[0,6,30,666,6524,103378,1250904,17976376,
 235892592,3296371800,44713314784,621198984864,
 8554092568512,118954438125472,1651089670102400,
 23021868920182656,321109217833684736,
 4490028930013194112]

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Last modified March 29 06:44 EDT 2024. Contains 371265 sequences. (Running on oeis4.)