The OEIS is looking to hire part-time people to help edit core sequences, upload scanned documents, process citations, fix broken links, etc. - Neil Sloane, email@example.com
Turning over the necklace is not allowed. Colors may be permuted without changing the necklace structure.
a(n) = A107424(n, 1)+A107424(n, 2)+...+A107424(n, 6). - David Wasserman, May 31 2005
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]
Table of n, a(n) for n=1..23.
sum mu(d)*A056294(n/d) where d|n and n>0.
Sequence in context: A195985 A056301 A001344 * A276547 A065850 A191029
Adjacent sequences: A056299 A056300 A056301 * A056303 A056304 A056305
Marks R. Nester (nesterm(AT)dpi.qld.gov.au)