A188872 - OEIS

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A188872 as a simple table

n	a(n)
1	81
2	6561
3	385700
4	24609576
5	1558668181
6	98523889293
7	6231989402196
8	394199392835388
9	24934537275160193
10	1577208767277367193
11	99764749430808100292
12	6310518350640206463960
13	399165473341720336437009

[81,6561,385700,24609576,1558668181,98523889293, 6231989402196,394199392835388,24934537275160193, 1577208767277367193,99764749430808100292, 6310518350640206463960,399165473341720336437009]