OFFSET
1,2
COMMENTS
See A056371 for an explanation of step shifts.
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]
FORMULA
Sum mu(d)*A056376(n/d) where d divides n.
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved