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A027938 as a simple table

na(n)
21
316
492
5365
61204
73588
810093
927476
1073440
11194345
12511576
131342936
143520457
159222440
1624151764
1763238773
18165571628
19433484476
201134891605
212971201740
227778726776

[1,16,92,365,1204,3588,10093,27476,73440,194345,
 511576,1342936,3520457,9222440,24151764,63238773,
 165571628,433484476,1134891605,2971201740,
 7778726776]