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A057918 as a simple table

na(n)
10
20
30
41
50
60
70
81
92
100
110
121
130
140
150
163
170
182
190
201
210
220
230
241
254
260
272
281
290
300
310
323
330
340
350
365
370
380
390
401
410
420
430
441
452
460
470
483
496
504
510
521
530
542
550
561
570
580
590
601
610
620
632
647
650
660
670
681
690
700
710
725
730
740
754
761
770
780
790
803
818
820
830
841
850
860
870
881
890
902
910
921
930
940
950
963
970
986
992
1009
1010
1020
1030
1041
1050

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