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A281388 as a simple table

na(n)
10
20
31
42
50
61
71
82
92
100
113
124
131
141
151
162
172
182
196
204
210
223
233
244
254
261
275
285
291
301
311
322
332
342
357
367
372
386
396
404
414
420
435
448
453
463
473
484
494
504
519
526
531
545
555
565
575
581
596
606
611
621
631
642
652
662
678
688
692
707
717
727
737
742
758
7612
776
786
796
804
814
824
8310
846
850
865
875
888
898
903
919
929
933
943
953

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