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A268241 as a simple table

na(n)
11
22
32
42
54
64
76
84
98
108
1110
128
1312
148
158
168
1716
1816
1916
2016
2118
2216
2320
2424
2520
2616
2716
2816
2916
3016
3124
3232
3332
3432
3532
3632
3732
3832
3934
4036
4134
4232
4336
4440
4544
4648
4744
4840
4936
5032
5132
5232
5332
5432
5532
5632
5732
5832
5940
6048
6156
6264
6364
6464
6564
6664
6764
6864
6964

[1,2,2,2,4,4,6,4,8,8,10,8,12,8,8,8,16,16,16,16,18,
 16,20,24,20,16,16,16,16,16,24,32,32,32,32,32,32,
 32,34,36,34,32,36,40,44,48,44,40,36,32,32,32,32,
 32,32,32,32,32,40,48,56,64,64,64,64,64,64,64,64]