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A002637 as a simple table

na(n)
11
21
31
41
52
61
71
81
91
101
111
122
132
141
152
162
172
181
191
202
211
222
232
243
253
262
273
282
292
302
311
322
331
343
353
363
374
383
393
402
413
423
431
442
453
464
474
483
494
503
514
523
533
543
553
563
574
585
595
603
613
624
634
643
652
664
673
684
694
705
716
725
735
744
755
766
773
784
794
806
815
824
835
844
856
864
875
886
894
903
913
928
937
945
956
965
977
985
996
1005
1013
1026
1035
1047
1057

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