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A160675 as a simple table

na(n)
11
21
31
41
51
61
71
81
92
102
112
122
132
144
154
164
174
184
194
204
214
224
234
244
255

[1,1,1,1,1,1,1,1,2,2,2,2,2,4,4,4,4,4,4,4,4,4,4,4,
 5]