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A280269 as a simple table

na(n)
10
20
31
40
51
60
71
81
90
101
110
121
131
142
151
160
171
180
191
201
211
220
231
241
250
261
272
281
293
301
310
321
330
341
351
361
371
382
392
401
410
421
430
441
452
461
473
481
490
501
511
522
531
540
551
561
571
581
590
601
610
621
631
642
651
663
671
682
694
701
710
721
730
741
751
761
772
781
792
801
810
821
831
842
851
860
871
882
893
901
914
921
930
941
950
961
971
981
991
1001

[0,0,1,0,1,0,1,1,0,1,0,1,1,2,1,0,1,0,1,1,1,0,1,1,
 0,1,2,1,3,1,0,1,0,1,1,1,1,2,2,1,0,1,0,1,2,1,3,1,0,
 1,1,2,1,0,1,1,1,1,0,1,0,1,1,2,1,3,1,2,4,1,0,1,0,1,
 1,1,2,1,2,1,0,1,1,2,1,0,1,2,3,1,4,1,0,1,0,1,1,1,1,
 1]