login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A006854 Nonantipodal balanced colorings of n-cube.
(Formerly M3136)
0
1, 1, 3, 33, 13699, 19738610121, 601031719117714604698691 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=1..7.

E. M. Palmer, R. C. Read and R. W. Robinson, Balancing the n-cube: a census of colorings, J. Algebraic Combin., 1 (1992), 257-273.

FORMULA

For n > 1, a(n) = Sum_{k=0..2^(n-2)} A(n,2*k) where A(n,2*k) = N(n,2*k) - Sum_{i=0..k-1} binomial(2^(n-1)-2*i, k-i) * A(n,2*i) with N(n,2*k) as defined in A006853 [From Palmer et al.]. - Sean A. Irvine, Aug 16 2017

CROSSREFS

Sequence in context: A204687 A134477 A080985 * A241793 A225427 A037103

Adjacent sequences:  A006851 A006852 A006853 * A006855 A006856 A006857

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

a(7) from Sean A. Irvine, Aug 16 2017

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 22 17:04 EDT 2019. Contains 327311 sequences. (Running on oeis4.)