A162926 - OEIS

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A162926 as a simple table

n	a(n)
1	1
2	1
3	1
4	3
5	7
6	37
7	1033
8	467757
9	33820512481
10	30277741778897513797
11	785696122254571911501384128129833729
12	1350037852944002174045556752948635277284099036085244331545069453543

[1,1,1,3,7,37,1033,467757,33820512481, 30277741778897513797, 785696122254571911501384128129833729, 13500378529440021740455567529486352772840990360852\ 44331545069453543]