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A042301 as a simple table

na(n)
01
152
22705
3140712
47319729
5380766620
619807183969
71030354333008
853598232500385
92788138444353028
10145036797338857841
117544701600064960760
12392469520000716817361
1320415959741637339463532
141062022376085142368921025
1555245579516169040523356832

[1,52,2705,140712,7319729,380766620,19807183969,
 1030354333008,53598232500385,2788138444353028,
 145036797338857841,7544701600064960760,
 392469520000716817361,20415959741637339463532,
 1062022376085142368921025,
 55245579516169040523356832]