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A308211 as a simple table

na(n)
10
20
31
40
51
60
72
81
91
101
114
122
133
141
154
164
176
184
198
205
215
224
2310
247
2510
268
2714
2812
2915
3010
3115
3211
3313
3412
3520
3617
3721
3816
3924
4022
4127
4222
4330
4424
4527
4625
4737
4830
4934
5028
5137
5234
5340
5432
5542
5638
5742
5839
5954
6046
6153
6245
6359
6456
6563
6657
6769
6860
6965
7060
7174

[0,0,1,0,1,0,2,1,1,1,4,2,3,1,4,4,6,4,8,5,5,4,10,7,
 10,8,14,12,15,10,15,11,13,12,20,17,21,16,24,22,27,
 22,30,24,27,25,37,30,34,28,37,34,40,32,42,38,42,
 39,54,46,53,45,59,56,63,57,69,60,65,60,74]