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A218867 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
131
140
150
161
170
181
190
201
210
220
230
241
251
261
270
281
291
302
311
322
330
342
351
361
371
381
391
401
411
421
431
441
451
460
470
481
491
501
511
521
531
542
551
562
570
581
592
602
612
622
630
642
652
661
671
681
692
701
710
720
731
740
752
762
770
782
791
803
810
821
831
842
852
861
870
883
892
903
910
922
931
944
951
961
972
981
993
1002

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