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A223706 as a simple table

na(n)
10
20
30
42
50
63
718
87
90
1030
115
1210
130
146
156205
160
17178
1813
1929
200
218
2223
230
240
2535
26102
2746
28429
2945
300
3119
32263
330
3442
357600
3632
3712
3858
391083163
40520
410
4248
43880129
4484
455320
4692
4714
4839
4913848
5094
514195
52718
5315
5421085
55772
56502068
575381
5828
59116
605579256

[0,0,0,2,0,3,18,7,0,30,5,10,0,6,6205,0,178,13,29,
 0,8,23,0,0,35,102,46,429,45,0,19,263,0,42,7600,32,
 12,58,1083163,520,0,48,880129,84,5320,92,14,39,
 13848,94,4195,718,15,21085,772,502068,5381,28,116,
 5579256]