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A056978 as a simple table

na(n)
10
20
30
41
50
60
70
81
91
100
110
121
130
140
150
161
171
181
191
201
210
220
230
241
251
260
270
281
290
300
310
321
331
341
351
362
371
381
391
401
411
420
430
441
450
460
470
481
491
501
511
521
530
540
550
561
571
580
590
601
610
620
630
641
651
661
671
682
691
701
711
722
732
741
751
762
771
781
791
801
811
821
831
841
850
860
870
881
891
900
910
921
930
940
950
961
971
981
991
1002
1011
1021

[0,0,0,1,0,0,0,1,1,0,0,1,0,0,0,1,1,1,1,1,0,0,0,1,
 1,0,0,1,0,0,0,1,1,1,1,2,1,1,1,1,1,0,0,1,0,0,0,1,1,
 1,1,1,0,0,0,1,1,0,0,1,0,0,0,1,1,1,1,2,1,1,1,2,2,1,
 1,2,1,1,1,1,1,1,1,1,0,0,0,1,1,0,0,1,0,0,0,1,1,1,1,
 2,1,1]