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!)
A056427 Number of primitive (period n) step cyclic shifted sequences using exactly five different symbols. 1
0, 0, 0, 0, 6, 150, 400, 4080, 15480, 127812, 269340, 3493530, 5777190, 57262050, 210945176, 1030384035, 2493913170, 32176432430, 51785999300, 562228198086, 1805427491520, 10438821574410, 22865672706000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,5
COMMENTS
See A056371 for an explanation of step shifts. Under step cyclic shifts, abcde, bdace, bcdea, cdeab and daceb etc. are equivalent.
REFERENCES
M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]
LINKS
FORMULA
sum mu(d)*A056418(n/d) where d|n.
CROSSREFS
Cf. A056422.
Sequence in context: A347842 A264645 A089480 * A056418 A346694 A070025
KEYWORD
nonn
AUTHOR
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 March 28 14:33 EDT 2024. Contains 371254 sequences. (Running on oeis4.)