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A308076 as a simple table

na(n)
11
22
34
412
516
648
764
8168
9272
10576
111024
122288
134096
148448
1516512
1633456
1765536
18132448
19262144
20526784
211049088
222101248
234194304
248399232
2516777472
2633570816
2767110976
28134252288
29268435456
30536942336
311073741824
322147618976
334294975488
348590196736
3517179871232

[1,2,4,12,16,48,64,168,272,576,1024,2288,4096,
 8448,16512,33456,65536,132448,262144,526784,
 1049088,2101248,4194304,8399232,16777472,33570816,
 67110976,134252288,268435456,536942336,1073741824,
 2147618976,4294975488,8590196736,17179871232]