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A038214 as a simple table

na(n)
01
12
28
34
432
564
68
796
8384
9512
1016
11256
121536
134096
144096
1532
16640
175120
1820480
1940960
2032768
2164
221536
2315360
2481920
25245760
26393216
27262144
28128
293584
3043008
31286720
321146880
332752512
343670016
352097152
36256
378192
38114688
39917504

[1,2,8,4,32,64,8,96,384,512,16,256,1536,4096,4096,
 32,640,5120,20480,40960,32768,64,1536,15360,81920,
 245760,393216,262144,128,3584,43008,286720,
 1146880,2752512,3670016,2097152,256,8192,114688,
 917504]