A302006 - OEIS

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A302006 as a simple table

n	a(n)
1	8
2	128
3	1808
4	25808
5	368144
6	5251712
7	74917424
8	1068722240
9	15245681888
10	217484775440
11	3102493407248
12	44258111045072
13	631356826964288
14	9006517303652528
15	128480995970256128
16	1832824583461859168

[8,128,1808,25808,368144,5251712,74917424, 1068722240,15245681888,217484775440,3102493407248, 44258111045072,631356826964288,9006517303652528, 128480995970256128,1832824583461859168]