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A239968 as a simple table

na(n)
11
20
30
42
50
63
70
84
95
106
110
127
130
148
159
1610
170
1811
190
2012
2113
2214
230
2415
2516
2617
2718
2819
290
3020
310
3221
3322
3423
3524
3625
370
3826
3927
4028
410
4229
430
4430
4531
4632
470
4833
4934
5035
5136
5237
530
5438
5539
5640
5741
5842
590
6043
610
6244
6345
6446
6547
6648
670
6849
6950
7051
710
7252

[1,0,0,2,0,3,0,4,5,6,0,7,0,8,9,10,0,11,0,12,13,14,
 0,15,16,17,18,19,0,20,0,21,22,23,24,25,0,26,27,28,
 0,29,0,30,31,32,0,33,34,35,36,37,0,38,39,40,41,42,
 0,43,0,44,45,46,47,48,0,49,50,51,0,52]