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A257523 as a simple table

na(n)
41
52
61
72
81
94
101
114
121
136
146
151
166
1714
181
198
2028
211
228
2344
241
2510
2666
2720
281
2910
3090
3164
321
3312
34120
35168
361
3712
38152
39320
401
4114
42190
43572
4472
451
4614
47230
48896
49328
501
5116
52276
531360
54984
551
5616
57324
581920
592264
601
6118
62378
632660
644528
65272

[1,2,1,2,1,4,1,4,1,6,6,1,6,14,1,8,28,1,8,44,1,10,
 66,20,1,10,90,64,1,12,120,168,1,12,152,320,1,14,
 190,572,72,1,14,230,896,328,1,16,276,1360,984,1,
 16,324,1920,2264,1,18,378,2660,4528,272]