OFFSET
1,2
LINKS
P. Erdős and J. L. Selfridge, Complete prime subsets of consecutive integers, Proceedings of the Manitoba Conference on Numerical Mathematics, Winnipeg (1971), p. 13.
EXAMPLE
a(5) = 3 because the largest pairwise relatively prime subset of {2,3,4,5,6} is of size 3 (e.g. {2,3,5}) and any 5 consecutive integers must contain at least 3 that are relatively prime
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Jeffrey Shallit, Jul 03 2001
EXTENSIONS
Name corrected by Wing Hong Tony Wong, Jun 11 2020
STATUS
approved