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A056526 as a simple table

na(n)
12
24
36
46
58
612
710
814
916
1012
1118
1224
1314
1434
1526
1616
1730
1836
1918
2042
2138
2212
2360
2422
2548
2638
2746
2836
2960
3054
3144
3236
3384
3422
3560
3684
3718
3878
3972
4060
4138
42112
4312
4496
45114
4626
4788
4892
4934
5090
51138
5226
5382
5498
55112
5654
57170
5836
5960
60168
6152
62128
6352
64128
6594
66108
6790
68188

[2,4,6,6,8,12,10,14,16,12,18,24,14,34,26,16,30,36,
 18,42,38,12,60,22,48,38,46,36,60,54,44,36,84,22,
 60,84,18,78,72,60,38,112,12,96,114,26,88,92,34,90,
 138,26,82,98,112,54,170,36,60,168,52,128,52,128,
 94,108,90,188]