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A268084 as a simple table

na(n)
10
20
30
41
52
63
74
84
95
106
117
128
1310
1411
1512
1614
1715
1817
1918
2020
2121
2223
2324
2426
2528
2629
2730
2832
2934
3035
3137
3239
3341
3443
3544

[0,0,0,1,2,3,4,4,5,6,7,8,10,11,12,14,15,17,18,20,
 21,23,24,26,28,29,30,32,34,35,37,39,41,43,44]