A075762 - OEIS

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A075762 as a simple table

n	a(n)
1	1
2	9
3	129
4	47169
5	1049913
6	615504609
7	15797864577
8	11270258161281
9	246696657053411097
10	7087786816380876801
11	178199489594187990894537
12	158945391097530669380671857
13	4791412124651983778003371329

[1,9,129,47169,1049913,615504609,15797864577, 11270258161281,246696657053411097, 7087786816380876801,178199489594187990894537, 158945391097530669380671857, 4791412124651983778003371329]