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A291456 as a simple table

n a(n)
0 0
1 1
2 65
3 47449
4 194397760
5 3037656102976
6 141727869124448256
7 16674281388691716870144
8 4371079210518164503303028736
9 2322975003299339366419974718488576
10 2322977286679362958150790503464960000000

[0,1,65,47449,194397760,3037656102976,
 141727869124448256,16674281388691716870144,
 4371079210518164503303028736,
 2322975003299339366419974718488576,
 2322977286679362958150790503464960000000]

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Last modified July 4 12:18 EDT 2020. Contains 335448 sequences. (Running on oeis4.)