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A076640 as a simple table

na(n)
11
22
32
43
52
64
72
84
93
105
112
125
132
145
153
165
172
186
192
206
214
226
232
246
253
266
274
286
292
307
312
326
333
347
353
367
372
387
394
407
412
428
432
447
455
467
472
487
493
508
513
527
532
548
554
567
575
588
592
608
612
627
635
647
653
668
672
688
694
708
712
728
732
748
754
768
773
789
792
808
815
829
832
849
855
868
873
888
892
909
913
928
934
948
953
968
972
988
995
1009
1012
1029
1032
1048
1056

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