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A218870 as a simple table

na(n)
12
22
32
44
56
66
76
810
912
1012
1112
1224
1328
1430
1530
1620
1740
1848
1952
2054
2154
2240
2392
24112
25120
26124
27126
28126
2974
30174
31210
32226
33234
34238
35240
36240
37148
38362
39438
40474
41490
42498
43502
44504
45504
46286
47700
48860
49928
50960
51976
52984
53988
54990
55990
56572
571448
581776
591916
601984
612016
622032
632040
642044
652046
662046

[2,2,2,4,6,6,6,10,12,12,12,24,28,30,30,20,40,48,
 52,54,54,40,92,112,120,124,126,126,74,174,210,226,
 234,238,240,240,148,362,438,474,490,498,502,504,
 504,286,700,860,928,960,976,984,988,990,990,572,
 1448,1776,1916,1984,2016,2032,2040,2044,2046,2046]