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A206476 as a simple table

na(n)
12
26
38
49
510
611
712
813
914
1018
1119
1220
1321
1424
1526
1627
1728
1829
1930
2031
2132
2233
2334
2435
2536
2637
2738
2839
2940
3041
3142
3244
3345
3446
3547
3648
3749
3850
3951
4052
4153
4254
4355
4456
4557
4659
4760
4861
4962
5064
5165
5266
5367
5468
5569

[2,6,8,9,10,11,12,13,14,18,19,20,21,24,26,27,28,
 29,30,31,32,33,34,35,36,37,38,39,40,41,42,44,45,
 46,47,48,49,50,51,52,53,54,55,56,57,59,60,61,62,
 64,65,66,67,68,69]