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A245686 as a simple table

n a(n)
2 2
3 21
4 395
5 10180
6 322095
7 12194323
8 536197356
9 26904958363
10 1516697994964

[2,21,395,10180,322095,12194323,536197356,
 26904958363,1516697994964]

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Last modified February 24 13:05 EST 2020. Contains 332209 sequences. (Running on oeis4.)