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A248139 as a simple table

na(n)
11
21
325
46
514
64
713
849
919
1010
112
1256
132
145
156
165
1727
1861
199
2033
2123
2253
2321
2415
253
2624
2711
2858
2939
30118
313
321598
3320
3440
354
362
3758
3826
3929
4017
4147
4234
434
4431
4543
46163
4741
4825
498
5026
5167
5240
5321
54214
55535
5612
577
5822
59164
6074

[1,1,25,6,14,4,13,49,19,10,2,56,2,5,6,5,27,61,9,
 33,23,53,21,15,3,24,11,58,39,118,3,1598,20,40,4,2,
 58,26,29,17,47,34,4,31,43,163,41,25,8,26,67,40,21,
 214,535,12,7,22,164,74]