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A050827 as a simple table

na(n)
12
24
36
46
58
610
710
812
912
1014
1116
1216
1318
1420
1520
1622
1724
1824
1926
2026
2128
2230
2330
2430
2532
2634
2736
2836
2938
3040
3142
3244
3346
3446
3548
3650
3752
3854
3954
4054
4156
4258
4358
4460
4562
4664
4764
4866
4966
5066
5168
5270
5372
5474
5576
5678
5778
5878
5980
6080
6182
6284
6386
6488
6590
6692
6792
6894
6994
7096
7198

[2,4,6,6,8,10,10,12,12,14,16,16,18,20,20,22,24,24,
 26,26,28,30,30,30,32,34,36,36,38,40,42,44,46,46,
 48,50,52,54,54,54,56,58,58,60,62,64,64,66,66,66,
 68,70,72,74,76,78,78,78,80,80,82,84,86,88,90,92,
 92,94,94,96,98]