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A381279 as a simple table

na(n)
11
22
31
43
56
63
77
89
913
1016
118
124
132
141
155
169
1714
187
1913
2015
2121
2225
2329
2431
2539
2642
2721
2825
2931
3033
3141
3243
3349
3453
3557
3661
3770
3835
3939
4043
4151
4253
4361
4463
4569
4675
4779
4881
4991
5094
5147
5251
5357
5459
5567
5671
5779
5883
5987
6089
61101
62103
63107
64113
65120
6660
6730
6815
6921
7025

[1,2,1,3,6,3,7,9,13,16,8,4,2,1,5,9,14,7,13,15,21,
 25,29,31,39,42,21,25,31,33,41,43,49,53,57,61,70,
 35,39,43,51,53,61,63,69,75,79,81,91,94,47,51,57,
 59,67,71,79,83,87,89,101,103,107,113,120,60,30,15,
 21,25]