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A181087 as a simple table

na(n)
11
22
31
41
53
61
72
84
91
103
111
121
131
145
152
162
171
184
191
201
212
226
232
243
251
265
271
281
293
307
312
324
331
342
352
361
376
381
391
401
411
423
433
441
451
464
478
482
495
501
512
523
531
547
551
561
571
582
593
604
611
621
635
649
652
666
671
682
694
701
718
721
731
741
753
763
775
782
792
802
811
821
836
8410
851
863
873
882
897
901
911
922
932
944
954
961
972
985
991
1009
1011
1021
1031
1044
1053
1066
1072
1082
1093
1101
1111
1127
11311
1141
1153
1164
1172
1188
1191
1201

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