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A139803 as a simple table

na(n)
10
21
31
42
51
62
71
82
93
104
115
122
137
144
151
162
173
184
199
202
21955
22468

[0,1,1,2,1,2,1,2,3,4,5,2,7,4,1,2,3,4,9,2,955,468]