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A051120 as a simple table

na(n)
01
11
21
33
41
51
63
74
81
91
104
112
123
136
141
151
166
172
184
193
203
211
222
238
241
251
268
272
286
293
304
315
323
333
342
3511
361
371
3811
392
408
413
426
431
445
454
464
478
483
495
502
5113
521
531
5413
552
5611
574
588
594
606
613
625
636
644
6510
663
677
682
6916
701
711
7216
732
7413
753
7611
771
7810
795
808
811
827
836
846
854
865
879
884
8912
903
919
922
9318
941

[1,1,1,3,1,1,3,4,1,1,4,2,3,6,1,1,6,2,4,3,3,1,2,8,
 1,1,8,2,6,3,4,5,3,3,2,11,1,1,11,2,8,3,6,1,5,4,4,8,
 3,5,2,13,1,1,13,2,11,4,8,4,6,3,5,6,4,10,3,7,2,16,
 1,1,16,2,13,3,11,1,10,5,8,1,7,6,6,4,5,9,4,12,3,9,
 2,18,1]