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A172318 as a simple table

na(n)
01
12
24
38
416
532
664
7128
8256
9511
101020
112036
124064
138112
1416192
1532320
1664512
17128768
18257025
19513030
201024024
212043984
224079856
238143520
2416254720
2532444928
2664761088
27129265151
28258017272
29515010520
301027977056

[1,2,4,8,16,32,64,128,256,511,1020,2036,4064,8112,
 16192,32320,64512,128768,257025,513030,1024024,
 2043984,4079856,8143520,16254720,32444928,
 64761088,129265151,258017272,515010520,1027977056]