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A293928 as a simple table

na(n)
11
22
34
46
58
612
716
818
920
1024
1132
1236
1340
1448
1554
1664
1772
1880
1984
2096
21100
22108
23120
24128
25144
26160
27162
28168
29192
30200
31216
32240
33252
34256
35272
36288
37312
38320
39324
40336
41360
42384
43400
44432
45440
46480
47486
48500
49504
50512
51544
52576
53588
54600
55624
56640
57648
58672
59684

[1,2,4,6,8,12,16,18,20,24,32,36,40,48,54,64,72,80,
 84,96,100,108,120,128,144,160,162,168,192,200,216,
 240,252,256,272,288,312,320,324,336,360,384,400,
 432,440,480,486,500,504,512,544,576,588,600,624,
 640,648,672,684]