A265452 - OEIS

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A265452 as a simple table

n	a(n)
1	2
2	18
3	250
4	3358
5	42282
6	502154
7	5710302
8	62782966
9	672520310
10	7056533978
11	72819524370
12	741279145398
13	7460955607878
14	74381377429158
15	735539563061590
16	7222916531541006
17	70499118369836786
18	684459097597365542

[2,18,250,3358,42282,502154,5710302,62782966, 672520310,7056533978,72819524370,741279145398, 7460955607878,74381377429158,735539563061590, 7222916531541006,70499118369836786, 684459097597365542]