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A221642 as a simple table

na(n)
11
21
32
41
53
60
71
84
90
102
111
125
130
140
150
161
176
180
192
200
213
221
237
240
250
260
270
280
291
308
310
322
330
344
350
360
371
389
390
400
410
420
430
440
453
461
4710
480
492
500
515
520
530
540
550
561
5711
580
590
600
610
620
630
640
650
660
671
6812
690
702
710
726
730
740
753
760
770
784
791
8013
810
820
830
840
850
860
870
880
890
900
910

[1,1,2,1,3,0,1,4,0,2,1,5,0,0,0,1,6,0,2,0,3,1,7,0,
 0,0,0,0,1,8,0,2,0,4,0,0,1,9,0,0,0,0,0,0,3,1,10,0,
 2,0,5,0,0,0,0,1,11,0,0,0,0,0,0,0,0,0,1,12,0,2,0,6,
 0,0,3,0,0,4,1,13,0,0,0,0,0,0,0,0,0,0,0]