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A180125 as a simple table

na(n)
10
21
30
42
52
63
72
85
92
105
112
126
134
147
154
1610
176
189
196
2012
218
2211
238
2415
258
2613
278
2816
2910
3015
3110
3221
3310
3417
3510
3620
3712
3819
3912
4025
4112
4221
4312
4424
4514
4623
4714
4830
4916
5025
5116
5230
5318
5427
5518
5635
5718
5829
5918
6034
6120
6231
6320
6442
6522
6633
6722
6840
6924
7035
7124
7245
7324
7437

[0,1,0,2,2,3,2,5,2,5,2,6,4,7,4,10,6,9,6,12,8,11,8,
 15,8,13,8,16,10,15,10,21,10,17,10,20,12,19,12,25,
 12,21,12,24,14,23,14,30,16,25,16,30,18,27,18,35,
 18,29,18,34,20,31,20,42,22,33,22,40,24,35,24,45,
 24,37]