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!)
A048668 Number of rooted 7-dimensional "polycubes" with n cells, with no symmetries removed. 2
1, 14, 273, 5936, 137340, 3307878, 81972296, 2075032808, 53403322203, 1392729138920, 36718293579198, 976872759337356, 26189947759482689, 706808197553825794 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..14.
R. C. Schroeppel, A few mathematical experiments, Experimental Mathematics Workshop, Oakland, 2004.
FORMULA
a(n) = n * A151833(n). - Andrew Howroyd, Dec 05 2018
CROSSREFS
Row 7 of A048790.
Cf. A048663, A151833.
Sequence in context: A216986 A138560 A051690 * A001820 A211900 A215544
Adjacent sequences: A048665 A048666 A048667 * A048669 A048670 A048671
KEYWORD
nonn
AUTHOR
Dan Hoey
EXTENSIONS
a(8)-a(14) from Andrew Howroyd, Dec 05 2018
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 14 07:57 EDT 2024. Contains 372530 sequences. (Running on oeis4.)