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A337019 as a simple table

na(n)
10
21
31
41
53
63
74
86
96
106
117
128
1310
1410
1510
1611
1712
1813
1915

[0,1,1,1,3,3,4,6,6,6,7,8,10,10,10,11,12,13,15]