A163475 - OEIS

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A163475 as a simple table

n	a(n)
0	3
1	30
2	306
3	3168
4	33156
5	349704
6	3708504
7	39476160
8	421307568
9	4504395744
10	48217133088
11	516565527552
12	5537243115072
13	59378264922240
14	636903805624704
15	6832763837309952
16	73311252232852224
17	786646960881163776

[3,30,306,3168,33156,349704,3708504,39476160, 421307568,4504395744,48217133088,516565527552, 5537243115072,59378264922240,636903805624704, 6832763837309952,73311252232852224, 786646960881163776]