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A074780 as a simple table

na(n)
11
22
33
45
56
67
79
813
914
1015
1117
1219
1321
1423
1525
1626
1727
1829
1931
2034
2135
2237
2338
2439
2541
2642
2743
2845
2946
3047
3149
3251
3353
3457
3559
3661
3762
3863
3965
4067
4169
4271
4373
4474
4575
4679
4781
4882
4983
5085
5186
5287
5389
5491
5593
5694
5795
5897
5998
60101
61102
62103
63105
64106
65107
66109
67111
68113

[1,2,3,5,6,7,9,13,14,15,17,19,21,23,25,26,27,29,
 31,34,35,37,38,39,41,42,43,45,46,47,49,51,53,57,
 59,61,62,63,65,67,69,71,73,74,75,79,81,82,83,85,
 86,87,89,91,93,94,95,97,98,101,102,103,105,106,
 107,109,111,113]