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A238556 as a simple table

na(n)
31
43
52
61
73
84
91
106
119
121
136
1421
1513
164
171
189
1939
2053
2123
221
239
2464
25128
2687
271
2812
2995
30283
31311
3291
3310
341
3512
36133
37521
38891
39543
40106
411
4215
43177
44917
452118
462030
47646
481
4915
50228
511444
524424
536000
543295
55456
5625
571
5818
59285
602207
618408
6215484
6313106
644322
65473

[1,3,2,1,3,4,1,6,9,1,6,21,13,4,1,9,39,53,23,1,9,
 64,128,87,1,12,95,283,311,91,10,1,12,133,521,891,
 543,106,1,15,177,917,2118,2030,646,1,15,228,1444,
 4424,6000,3295,456,25,1,18,285,2207,8408,15484,
 13106,4322,473]