A201389 - OEIS

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A201389 as a simple table

n	a(n)
1	1
2	98
3	5897
4	312604
5	14027391
6	539625139
7	18131486831
8	541077286873
9	14533375222752
10	355152145922937
11	7965464463977638
12	165169207300414826
13	3186082489177522116
14	57478616703131109039
15	974288796548462899774

[1,98,5897,312604,14027391,539625139,18131486831, 541077286873,14533375222752,355152145922937, 7965464463977638,165169207300414826, 3186082489177522116,57478616703131109039, 974288796548462899774]