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A108747 as a simple table

na(n)
12
22
34
44
58
68
710
820
924
1016
1128
1256
1372
1464
1532
1684
17168
18224
19224
20160
2164
22264
23528
24720
25768
26640
27384
28128
29858
301716
312376
322640
332400
341728
35896
36256
372860
385720
398008
409152
418800
427040
434480
442048
45512
469724
4719448
4827456
4932032
5032032
5127456
5219712
5311264
544608
551024

[2,2,4,4,8,8,10,20,24,16,28,56,72,64,32,84,168,
 224,224,160,64,264,528,720,768,640,384,128,858,
 1716,2376,2640,2400,1728,896,256,2860,5720,8008,
 9152,8800,7040,4480,2048,512,9724,19448,27456,
 32032,32032,27456,19712,11264,4608,1024]