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A219521 as a simple table

na(n)
15
29
322
468
5166
6380
7821
81700
93374
106430
1111784
1220830
1335631
1459161
1595611
16150769
17232486
18351241
19520819
20759117
211089094
221539882
232148076
242959222
254029523
265427784
277237618
289559936
2912515745
3016249279
3120931489
3226763919

[5,9,22,68,166,380,821,1700,3374,6430,11784,20830,
 35631,59161,95611,150769,232486,351241,520819,
 759117,1089094,1539882,2148076,2959222,4029523,
 5427784,7237618,9559936,12515745,16249279,
 20931489,26763919]