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A246426 as a simple table

na(n)
21
32
412
535
6266
72486
828781
9409929
106824303
11130615525
122846762052
1369481280019
141875107560799
1555466043249309
161791220240413582
1762561482660495103
182351822439519905841
1994645194753881075173
204053272062427790574310
21185031225489554592624010

[1,2,12,35,266,2486,28781,409929,6824303,
 130615525,2846762052,69481280019,1875107560799,
 55466043249309,1791220240413582,62561482660495103,
 2351822439519905841,94645194753881075173,
 4053272062427790574310,185031225489554592624010]