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A080606 as a simple table

na(n)
12
22
34
44
56
66
76
86
98
108
118
128
1310
1410
1510
1610
1710
1810
1912
2012
2112
2212
2312
2412
2514
2614
2714
2814
2914
3014
3116
3216
3316
3416
3516
3616
3718
3818
3918
4018
4118
4218
4318
4418
4520
4620
4720
4820
4920
5020
5120
5220
5322
5422
5522
5622
5722
5822
5922
6022
6124
6224
6324
6424
6524
6624
6724
6824
6926
7026
7126
7226
7326

[2,2,4,4,6,6,6,6,8,8,8,8,10,10,10,10,10,10,12,12,
 12,12,12,12,14,14,14,14,14,14,16,16,16,16,16,16,
 18,18,18,18,18,18,18,18,20,20,20,20,20,20,20,20,
 22,22,22,22,22,22,22,22,24,24,24,24,24,24,24,24,
 26,26,26,26,26]