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A010993 as a simple table

na(n)
401
4141
42861
4312341
44135751
451221759
469366819
4762891499
48377348994
492054455634
5010272278170
5147626016970
52206379406870
53841392966470
543245372870670
5511899700525790
5641648951840265
57139646485582065
58449972009097765
591397281501935165
604191844505805495

[1,41,861,12341,135751,1221759,9366819,62891499,
 377348994,2054455634,10272278170,47626016970,
 206379406870,841392966470,3245372870670,
 11899700525790,41648951840265,139646485582065,
 449972009097765,1397281501935165,4191844505805495]