A239546 - OEIS

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A239546 as a simple table

n	a(n)
1	5
2	9
3	33
4	129
5	8193
6	131073
7	524289
8	2147483649
9	2305843009213693953
10	618970019642690137449562113
11	162259276829213363391578010288129
12	170141183460469231731687303715884105729

[5,9,33,129,8193,131073,524289,2147483649, 2305843009213693953,618970019642690137449562113, 162259276829213363391578010288129, 170141183460469231731687303715884105729]