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A285531 as a simple table

na(n)
11
23
34
45
57
68
711
813
914
1019
1121
1222
1323
1425
1526
1627
1729
1830
1931
2033
2134
2235
2337
2438
2539
2641
2742
2845
2947
3048
3153
3255
3356
3457
3559
3660
3761
3863
3964
4065
4167
4268
4371
4473
4574
4681
4783
4884
4989
5091
5192
5293
5395
5496
5599
56101
57102
58107
59109
60110
61111
62113
63114
64115

[1,3,4,5,7,8,11,13,14,19,21,22,23,25,26,27,29,30,
 31,33,34,35,37,38,39,41,42,45,47,48,53,55,56,57,
 59,60,61,63,64,65,67,68,71,73,74,81,83,84,89,91,
 92,93,95,96,99,101,102,107,109,110,111,113,114,
 115]