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A230865 as a simple table

na(n)
00
12
24
36
48
56
68
710
812
914
1012
1114
1216
1318
1420
1518
1620
1722
1824
1926
2024
2126
2228
2330
2432
2526
2628
2730
2832
2934
3032
3134
3236
3338
3440
3538
3640
3742
3844
3946
4044
4146
4248
4350
4452
4550
4652
4754
4856
4958
5052
5154
5256
5358
5460
5558
5660
5762
5864
5966
6064
6166
6268
6370
6472
6570
6672
6774
6876
6978
7076
7178
7280
7382
7484
7578
7680
7782
7884
7986
8084

[0,2,4,6,8,6,8,10,12,14,12,14,16,18,20,18,20,22,
 24,26,24,26,28,30,32,26,28,30,32,34,32,34,36,38,
 40,38,40,42,44,46,44,46,48,50,52,50,52,54,56,58,
 52,54,56,58,60,58,60,62,64,66,64,66,68,70,72,70,
 72,74,76,78,76,78,80,82,84,78,80,82,84,86,84]