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A213364 as a simple table

na(n)
12
26
38
414
516
620
728
832
938
1040
1150
1256
1364
1466
1570
1682
1790
1894
19108
20118
21120
22126
23136
24148
25164
26170
27172
28180
29184

[2,6,8,14,16,20,28,32,38,40,50,56,64,66,70,82,90,
 94,108,118,120,126,136,148,164,170,172,180,184]