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A067631 as a simple table

na(n)
20
30
40
50
61
70
80
90
102
110
121
130
144
151
160
170
181
190
202
213
226
230
241
250
268
270
283
290
302
310
320
336
3411
351
361
370
3812
397
402
410
423
430
445
451
4615
470
480
490
502
5110
526
530
541
554
563
5711
5819
590
601
610
6221
632
640
656
665
670
689
6914
703
710
721
730
7425
751
7610
773
786
790
801
810
8228
830
842
858
8629
8718
885
890
901
914
9212
9320
9432
9510
960
970

[0,0,0,0,1,0,0,0,2,0,1,0,4,1,0,0,1,0,2,3,6,0,1,0,
 8,0,3,0,2,0,0,6,11,1,1,0,12,7,2,0,3,0,5,1,15,0,0,
 0,2,10,6,0,1,4,3,11,19,0,1,0,21,2,0,6,5,0,9,14,3,
 0,1,0,25,1,10,3,6,0,1,0,28,0,2,8,29,18,5,0,1,4,12,
 20,32,10,0,0]