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A111899 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
221
232
243
253
264
275
286
296
306
316
326
336
346
356
366
376
386
396
406
416
426
436
446
456
466
476
486
496
506
516
526
536
546
556
566
576
586
596
606
616
626
636
646
656
666
676
686
696
706
716
726
736
746
756
766
776
786
796
806
816
826
836
846
856
866
876
886
896
906
916
927
937
948
958
969
979
9810
9910
10010
10110
10211

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,3,
 3,4,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,8,8,9,9,10,
 10,10,10,11]