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A144740 as a simple table

na(n)
10
20
30
40
51
60
72
80
91
101
114
120
134
141
152
162
176
180
196
201
212
223
238
240
256
264
276
283
2910
300
3110
324
335
345
357
362
3713
386
398
404
4115
421
4315
446
456
467
4716
482
4913
505
5110
528
5318
543
5512
567
5711
5811
5921
601
6121
6211
6311
6411
6515
664
6723
6811
6914
706
7124
725
7324
7413
7511
7612
7718
785
7926
809
8117
8214
8327
843
8519
8615
8719

[0,0,0,0,1,0,2,0,1,1,4,0,4,1,2,2,6,0,6,1,2,3,8,0,
 6,4,6,3,10,0,10,4,5,5,7,2,13,6,8,4,15,1,15,6,6,7,
 16,2,13,5,10,8,18,3,12,7,11,11,21,1,21,11,11,11,
 15,4,23,11,14,6,24,5,24,13,11,12,18,5,26,9,17,14,
 27,3,19,15,19]