A195951 - OEIS

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A195951 as a simple table

n	a(n)
1	1
2	5
3	162
4	19913
5	10408097
6	23663085157
7	233759541159316
8	10022979661615617883
9	1865159356600749113021208
10	1506395624918723916292924776440
11	5280426678910236576404521138602764328

[1,5,162,19913,10408097,23663085157, 233759541159316,10022979661615617883, 1865159356600749113021208, 1506395624918723916292924776440, 5280426678910236576404521138602764328]