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A050825 as a simple table

na(n)
12
24
36
46
56
68
710
810
912
1014
1116
1216
1316
1416
1518
1618
1720
1822
1924
2024
2126
2226
2326
2428
2530
2632
2734
2836
2936
3038
3138
3240
3340
3442
3544
3646
3746
3848
3950
4052
4154
4254
4354
4456
4558
4660
4760
4862
4962
5064
5166
5268
5368
5470
5570
5670
5772
5872
5972
6072
6174
6276
6378
6480
6582
6682
6784
6886
6986
7086
7186

[2,4,6,6,6,8,10,10,12,14,16,16,16,16,18,18,20,22,
 24,24,26,26,26,28,30,32,34,36,36,38,38,40,40,42,
 44,46,46,48,50,52,54,54,54,56,58,60,60,62,62,64,
 66,68,68,70,70,70,72,72,72,72,74,76,78,80,82,82,
 84,86,86,86,86]