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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..31.
Sum mu(d)*A016116(n/d+1) where d divides n.
Column 2 of A284823.
Sequence in context: A071055 A183034 A078052 * A284570 A256847 A046277
Adjacent sequences: A056455 A056456 A056457 * A056459 A056460 A056461
Marks R. Nester (nesterm(AT)dpi.qld.gov.au)