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A022255 as a simple table

n a(n)
4 1
5 7381
6 49031983
7 322140667123
8 2113887057661126
9 13869447829832637406
10 90997618413507253345810
11 597035499217287155085549610
12 3917150001348391097251303957615
13 25700421225173962543056800181928315
14 168620463706718874134703442098874261321

[1,7381,49031983,322140667123,2113887057661126,
 13869447829832637406,90997618413507253345810,
 597035499217287155085549610,
 3917150001348391097251303957615,
 25700421225173962543056800181928315,
 168620463706718874134703442098874261321]

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Last modified April 24 19:49 EDT 2019. Contains 322446 sequences. (Running on oeis4.)