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A228942 as a simple table

na(n)
10
21
32
42
53
64
74
84
94
106
116
126
136
148
158
167
178
1811
1912
2012
2112
2214
2314
2412
2512
2613
2715
2817
2915
3017
3117
3218
3315
3415
3515
3617
3717
3820
3919
4025
4126
4228
4324
4425
4519
4619
4724
4820
4919
5018

[0,1,2,2,3,4,4,4,4,6,6,6,6,8,8,7,8,11,12,12,12,14,
 14,12,12,13,15,17,15,17,17,18,15,15,15,17,17,20,
 19,25,26,28,24,25,19,19,24,20,19,18]