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A003977 as a simple table

na(n)
11
22
33
43
54
66
75
84
97
108
116
129
137
1410
1512
165
178
1814
199
2012
2115
2212
2310
2412
2513
2614
2715
2815
2911
3024
3112
326
3318
3416
3520
3621
3713
3818
3921
4016
4114
4230
4315
4418
4528
4620
4716
4815
4921
5026
5124
5221
5317
5430
5524
5620
5727
5822
5918
6036
6119
6224
6335
647
6528
6636
6720
6824
6930
7040
7121
7228
7322
7426

[1,2,3,3,4,6,5,4,7,8,6,9,7,10,12,5,8,14,9,12,15,
 12,10,12,13,14,15,15,11,24,12,6,18,16,20,21,13,18,
 21,16,14,30,15,18,28,20,16,15,21,26,24,21,17,30,
 24,20,27,22,18,36,19,24,35,7,28,36,20,24,30,40,21,
 28,22,26]