A189778 - OEIS

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A189778 as a simple table

n	a(n)
1	181
2	32761
3	5929741
4	530389481
5	44835555921
6	3292640179737
7	256681706358532
8	19742364192283882
9	1563337091301143920
10	122856570846133660189
11	9713292881930768378666
12	764499527960618934733556

[181,32761,5929741,530389481,44835555921, 3292640179737,256681706358532,19742364192283882, 1563337091301143920,122856570846133660189, 9713292881930768378666,764499527960618934733556]