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A189720 as a simple table

na(n)
12
23
34
47
510
614
715
817
918
1019
1123
1224
1326
1427
1528
1632
1733
1835
1936
2038
2139
2240
2343
2447
2548
2649
2752
2855
2959
3060
3162
3263
3365
3466
3567
3670
3774
3875
3976
4079
4182
4286
4387
4489
4590
4692
4793
4894
4997
50101
51102
52103
53106
54110
55111
56112
57115
58118
59122
60123
61125
62126
63127
64131
65132
66134
67135
68137
69138
70139
71142
72145
73149
74150
75152
76153
77154
78158
79159

[2,3,4,7,10,14,15,17,18,19,23,24,26,27,28,32,33,
 35,36,38,39,40,43,47,48,49,52,55,59,60,62,63,65,
 66,67,70,74,75,76,79,82,86,87,89,90,92,93,94,97,
 101,102,103,106,110,111,112,115,118,122,123,125,
 126,127,131,132,134,135,137,138,139,142,145,149,
 150,152,153,154,158,159]