A125452 - OEIS

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A125452 as a simple table

n	a(n)
0	1
1	17
2	217
3	2465
4	31465
5	409037
6	5372965
7	70853093
8	935884585
9	12370240043
10	163551397657
11	2162617244343
12	28597315302781
13	378163094731205
14	5000764642734763
15	66129475365595985
16	874488915318715897

[1,17,217,2465,31465,409037,5372965,70853093, 935884585,12370240043,163551397657,2162617244343, 28597315302781,378163094731205,5000764642734763, 66129475365595985,874488915318715897]