The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A368371 AGM transform of powers of 2. 3
0, 4, 1016, 547856, 813732832, 3903659417664, 67987041960443776, 4575641535535493153024, 1216334976081196096854162944, 1285452910821757852273429343896576, 5415346123378152397099190627515485911040, 91076602434014222291049466570765323207327092736 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
See A368366 for further information.
LINKS
MATHEMATICA
A369394[n_] := (2^(n+1)-2)^n - n^n*2^(n*(n+1)/2);
Array[A369394, 15] (* Paolo Xausa, Jan 29 2024 *)
PROG
(Python)
def A368371(n): return ((1<<n+1)-2)**n-n**n*(1<<(n*(n+1)>>1)) # Chai Wah Wu, Jan 25 2024
CROSSREFS
Cf. A368366.
Sequence in context: A087365 A024059 A069920 * A217024 A013780 A139300
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 24 2024
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 16 20:35 EDT 2024. Contains 372555 sequences. (Running on oeis4.)