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A119432 as a simple table

na(n)
12
24
36
48
510
612
714
816
918
1020
1122
1224
1326
1428
1530
1632
1734
1836
1938
2040
2142
2244
2346
2448
2550
2652
2754
2856
2958
3060
3162
3264
3366
3468
3570
3672
3774
3876
3978
4080
4182
4284
4386
4488
4590
4692
4794
4896
4998
50100
51102
52104
53105
54106
55108
56110
57112
58114
59116
60118
61120
62122
63124
64126
65128
66130

[2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,
 36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,
 68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,
 100,102,104,105,106,108,110,112,114,116,118,120,
 122,124,126,128,130]