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A181552 as a simple table

na(n)
11
21
36
41
53
612
71
86
94
1020
111
123
134
145
1530
161
176
1812
1910
206
2172
221
233
244
255
266
2712
2856
291
306
314
3220
336
3424
358
3680
371
383
3912
405
416
4236
438
4410
4599
461
476
484
4910
5030
5124
528
5320
5411
55180
561
573
584
595
606
6112
628
6310
6411
6518
66132
671
686
6912
7020
716
7272
738
7440
7533
7636
7712
78240

[1,1,6,1,3,12,1,6,4,20,1,3,4,5,30,1,6,12,10,6,72,
 1,3,4,5,6,12,56,1,6,4,20,6,24,8,80,1,3,12,5,6,36,
 8,10,99,1,6,4,10,30,24,8,20,11,180,1,3,4,5,6,12,8,
 10,11,18,132,1,6,12,20,6,72,8,40,33,36,12,240]