A218895 - OEIS

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A218895 as a simple table

n	a(n)
1	16
2	180
3	2594
4	28598
5	373612
6	4575512
7	57116962
8	710022390
9	8831593874
10	109858747456
11	1366468080924
12	16997248406138
13	211423793938568
14	2629844586659292
15	32711934936773636
16	406895021195875512

[16,180,2594,28598,373612,4575512,57116962, 710022390,8831593874,109858747456,1366468080924, 16997248406138,211423793938568,2629844586659292, 32711934936773636,406895021195875512]