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A122279
as a simple table
n
a(n)
1
1
2
114
3
472
4
86520
5
397603
6
514911
7
5123504
8
382611481
9
1166422075
10
24846586495
11
62401902289
12
344065155571
[1,114,472,86520,397603,514911,5123504,382611481, 1166422075,24846586495,62401902289,344065155571]