(Translated by https://www.hiragana.jp/)
A043726 - OEIS
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A043726 as a simple table

na(n)
12
24
36
48
512
614
716
824
928
1030
1132
1242
1348
1456
1560
1662
1764
1874
1982
2084
2186
2290
2396
24106
25112
26120
27124
28126
29128
30138
31146
32148
33150
34154
35162
36164
37166
38168
39172
40174
41178
42180
43182
44186
45192
46202
47210
48212
49214
50218
51224
52234
53240

[2,4,6,8,12,14,16,24,28,30,32,42,48,56,60,62,64,
 74,82,84,86,90,96,106,112,120,124,126,128,138,146,
 148,150,154,162,164,166,168,172,174,178,180,182,
 186,192,202,210,212,214,218,224,234,240]