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A223664 as a simple table

n a(n)
1 2
2 16
3 292
4 6454
5 136289
6 2715255
7 51831694
8 962697852
9 17643516790
10 323311474180

[2,16,292,6454,136289,2715255,51831694,962697852,
 17643516790,323311474180]

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Last modified August 14 13:43 EDT 2022. Contains 356117 sequences. (Running on oeis4.)