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A302930 as a simple table

na(n)
10
20
30
40
50
61
71
82
92
103
113
124
134
145
156
166
177
188
198
209
2110
2210
2311
2412
2512
2613
2714
2815
2915
3016
3117
3218

[0,0,0,0,0,1,1,2,2,3,3,4,4,5,6,6,7,8,8,9,10,10,11,
 12,12,13,14,15,15,16,17,18]