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A216948 as a simple table

na(n)
11
21
31
41
53
61
71
85
97
101
111
126
1319
1415
151
161
1710
1822
1967
2031
211
221
2312
2456
2567
26229
2763
281
291
30-24
31176
32159
33225
34765
35127
361

[1,1,1,1,3,1,1,5,7,1,1,6,19,15,1,1,10,22,67,31,1,
 1,12,56,67,229,63,1,1,-24,176,159,225,765,127,1]