A210406 - OEIS

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A210406 as a simple table

n	a(n)
1	7
2	78
3	864
4	9576
5	106128
6	1176192
7	13035456
8	144468864
9	1601114112
10	17744767488
11	196661044224
12	2179547652096
13	24155409051648
14	267708662341632
15	2966951532036096
16	32882019268460544
17	364423611069038592

[7,78,864,9576,106128,1176192,13035456,144468864, 1601114112,17744767488,196661044224,2179547652096, 24155409051648,267708662341632,2966951532036096, 32882019268460544,364423611069038592]