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”).

A334957 as a simple table

na(n)
01
11
21
34
48
54
664
7192
8192
964
104096
1116384
1224576
1316384
144096
151048576
165242880
1710485760
1810485760
195242880
201048576
211073741824
226442450944
2316106127360
2421474836480
2516106127360
266442450944
271073741824
284398046511104
2930786325577728
3092358976733184
31153931627888640
32153931627888640
3392358976733184
3430786325577728
354398046511104

[1,1,1,4,8,4,64,192,192,64,4096,16384,24576,16384,
 4096,1048576,5242880,10485760,10485760,5242880,
 1048576,1073741824,6442450944,16106127360,
 21474836480,16106127360,6442450944,1073741824,
 4398046511104,30786325577728,92358976733184,
 153931627888640,153931627888640,92358976733184,
 30786325577728,4398046511104]