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A068318 as a simple table

na(n)
14
25
36
47
59
68
710
813
910
1015
1114
1219
1312
1421
1516
1625
1714
1820
1916
2022
2131
2233
2318
2426
2539
2618
2743
2822
2945
3032
3120
3234
3349
3424
3555
3640
3728
3861
3924
4022
4163
4244
4346
4426
4569
4650
4773
4824
4934
5075
5136
5281
5356
5430
5585
5626
5762
5891
5964
6042
6128
6299
6370
64103
6536
6646
67105
6830
6974
70109

[4,5,6,7,9,8,10,13,10,15,14,19,12,21,16,25,14,20,
 16,22,31,33,18,26,39,18,43,22,45,32,20,34,49,24,
 55,40,28,61,24,22,63,44,46,26,69,50,73,24,34,75,
 36,81,56,30,85,26,62,91,64,42,28,99,70,103,36,46,
 105,30,74,109]