A189275 - OEIS

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A189275 as a simple table

n	a(n)
1	1
2	25
3	225
4	2704
5	29241
6	323761
7	3553225
8	39100009
9	429981696
10	4729725529
11	52022767225
12	572215089601
13	6293931930441
14	69228590218384
15	761462776998225
16	8375523274873225
17	92124512415080401
18	1013300979290647441

[1,25,225,2704,29241,323761,3553225,39100009, 429981696,4729725529,52022767225,572215089601, 6293931930441,69228590218384,761462776998225, 8375523274873225,92124512415080401, 1013300979290647441]