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A160870 as a simple table

na(n)
11
21
31
41
53
61
71
84
97
101
111
127
1313
1415
151
161
176
1835
1940
2031
211
221
2312
2431
25155
26121
2763
281
291
308
3191
32156
33651
34364
35127
361
371
3815
3957
40600
41781
422667
431093
44255
451
461
4713
48155
49400
503751
513906
5210795
533280
54511
551
561
5718
58130
591395
602801
6122932
6219531
6343435
649841
651023
661

[1,1,1,1,3,1,1,4,7,1,1,7,13,15,1,1,6,35,40,31,1,1,
 12,31,155,121,63,1,1,8,91,156,651,364,127,1,1,15,
 57,600,781,2667,1093,255,1,1,13,155,400,3751,3906,
 10795,3280,511,1,1,18,130,1395,2801,22932,19531,
 43435,9841,1023,1]