A115326 - OEIS

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A115326 as a simple table

n	a(n)
0	1
1	1
2	9
3	49
4	625
5	6561
6	109561
7	1697809
8	35247969
9	717436225
10	17862589801
11	448030761201
12	13029739166929
13	387070092765409
14	12888060720104025
15	441427773256896721
16	16566268858818121921
17	641658452161285040769

[1,1,9,49,625,6561,109561,1697809,35247969, 717436225,17862589801,448030761201,13029739166929, 387070092765409,12888060720104025, 441427773256896721,16566268858818121921, 641658452161285040769]