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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

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Last modified March 1 09:59 EST 2024. Contains 370432 sequences. (Running on oeis4.)