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A212620 as a simple table

na(n)
11
22
31
43
52
61
73
82
91
104
113
122
131
144
153
162
171
184
193
203
211
224
233
243
251
265
274
283
292
301
315
324
333
342
351
365
374
383
392
401
415
424
434
443
451
465
474
484
493
501
515
524
534
543
551
566
575
584
593
602
611
625
634
646
654
661
675
684
694
703
711
726
735
745
755
763
771
785
794
806
814
821
836
845
855
864
873
881
896
905
915
924
933
941
956
965
974
983
992
1001
1016
1025
1035
1045
1053
1061
1076
1085
1097
1107
1114
1121
1137
1146
1155
1164
1173
1182
1191
1206
1215
1225
1235
1243
1251
1267
1276
1286
1297
1306
1313
1321
1336
1345
1356
1366
1374
1381
1396
1405
1415
1424
1433
1441
1457
1466
1476
1486
1495
1503
1511

[1,2,1,3,2,1,3,2,1,4,3,2,1,4,3,2,1,4,3,3,1,4,3,3,
 1,5,4,3,2,1,5,4,3,2,1,5,4,3,2,1,5,4,4,3,1,5,4,4,3,
 1,5,4,4,3,1,6,5,4,3,2,1,5,4,6,4,1,5,4,4,3,1,6,5,5,
 5,3,1,5,4,6,4,1,6,5,5,4,3,1,6,5,5,4,3,1,6,5,4,3,2,
 1,6,5,5,5,3,1,6,5,7,7,4,1,7,6,5,4,3,2,1,6,5,5,5,3,
 1,7,6,6,7,6,3,1,6,5,6,6,4,1,6,5,5,4,3,1,7,6,6,6,5,
 3,1]