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A168021 as a simple table

na(n)
11
22
31
43
50
61
75
82
90
101
117
120
130
140
151
1611
173
182
190
200
211
2215
230
240
250
260
270
281
2922
305
310
322
330
340
350
361
3730
380
393
400
410
420
430
440
451
4642
477
480
490
502
510
520
530
540
551
5656
570
580
590
600
610
620
630
640
650
661
6777
6811
695
703
710
722
730
740
750
760
770
781

[1,2,1,3,0,1,5,2,0,1,7,0,0,0,1,11,3,2,0,0,1,15,0,
 0,0,0,0,1,22,5,0,2,0,0,0,1,30,0,3,0,0,0,0,0,1,42,
 7,0,0,2,0,0,0,0,1,56,0,0,0,0,0,0,0,0,0,1,77,11,5,
 3,0,2,0,0,0,0,0,1]