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A221749 as a simple table

na(n)
10
21
31
40
519
60
71
898
998
101
110
12817
131050
14817
150
161
175567
1832129
1932129
205567
211
220
2341067
24617713
253389575
26617713
2741067
280
291
30293058
3114217642
32241376639
33241376639
3414217642
35293058
361
370
382119375
39302341148
4019762890960

[0,1,1,0,19,0,1,98,98,1,0,817,1050,817,0,1,5567,
 32129,32129,5567,1,0,41067,617713,3389575,617713,
 41067,0,1,293058,14217642,241376639,241376639,
 14217642,293058,1,0,2119375,302341148,19762890960]