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A222901 as a simple table

n a(n)
1 1
2 7
3 45
4 767
5 4909
6 119393
7 759891
8 20299463
9 130579169
10 3588643955
11 23230932391
12 647426033879
13 4209052934053
14 118324983126455
15 771976078016995
16 21829828686370139
17 142850851773130033
18 4056660324820606967

[1,7,45,767,4909,119393,759891,20299463,130579169,
 3588643955,23230932391,647426033879,4209052934053,
 118324983126455,771976078016995,21829828686370139,
 142850851773130033,4056660324820606967]

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Last modified August 4 19:42 EDT 2020. Contains 336202 sequences. (Running on oeis4.)