A009479 - OEIS

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A009479 as a simple table

n	a(n)
0	1
1	1
2	17
3	201
4	7041
5	291025
6	18979729
7	1597285977
8	176766161281
9	24470008076193
10	4166922390589073
11	854427257015747305
12	207778779976099167233
13	59114568337761907619441

[1,1,17,201,7041,291025,18979729,1597285977, 176766161281,24470008076193,4166922390589073, 854427257015747305,207778779976099167233, 59114568337761907619441]