login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A132720 as a simple table

na(n)
01
12
24
38
48
516
632
732
864
9128
10128
11256
12512
13512
141024
152048
162048
174096
188192
198192
2016384
2132768
2232768
2365536
24131072
25131072
26262144
27524288
28524288
291048576
302097152
312097152
324194304
338388608
348388608
3516777216
3633554432
3733554432
3867108864
39134217728
40134217728
41268435456
42536870912
43536870912

[1,2,4,8,8,16,32,32,64,128,128,256,512,512,1024,
 2048,2048,4096,8192,8192,16384,32768,32768,65536,
 131072,131072,262144,524288,524288,1048576,
 2097152,2097152,4194304,8388608,8388608,16777216,
 33554432,33554432,67108864,134217728,134217728,
 268435456,536870912,536870912]