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A013322 as a simple table

na(n)
11
23
33
43
56
66
76
810
910
1010
1115
1215
1315
1415
1515
1615
1721
1821
1921
2021
2121
2221
2328
2428
2528
2628
2728
2828
2936
3036
3136
3236
3336
3436
3536
3636
3736
3836
3945
4045
4145
4245
4345
4445
4545
4645
4745
4845
4955
5055
5155
5255
5355
5455
5555
5655
5755
5855
5966
6066
6166
6266
6366
6466
6566
6666
6766
6866
6966
7066

[1,3,3,3,6,6,6,10,10,10,15,15,15,15,15,15,21,21,
 21,21,21,21,28,28,28,28,28,28,36,36,36,36,36,36,
 36,36,36,36,45,45,45,45,45,45,45,45,45,45,55,55,
 55,55,55,55,55,55,55,55,66,66,66,66,66,66,66,66,
 66,66,66,66]