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A049828 as a simple table

na(n)
10
20
30
40
51
60
70
80
91
100
110
121
133
141
150
160
170
180
192
201
210
220
231
241
254
263
271
280
290
300
313
320
336
342
351
360
370
381
390
401
415
423
433
441
450
460
470
481
492
500
516
524
532
541
550
560
571
583
594
601
616
628
636
643
651
660
670
680
690
700
713
720
738
744
753
762
771
780
790
801
811
821
836
841
857
8611
875
884
893
901
910

[0,0,0,0,1,0,0,0,1,0,0,1,3,1,0,0,0,0,2,1,0,0,1,1,
 4,3,1,0,0,0,3,0,6,2,1,0,0,1,0,1,5,3,3,1,0,0,0,1,2,
 0,6,4,2,1,0,0,1,3,4,1,6,8,6,3,1,0,0,0,0,0,3,0,8,4,
 3,2,1,0,0,1,1,1,6,1,7,11,5,4,3,1,0]