OFFSET
1,4
LINKS
Wikipedia, Kayles
EXAMPLE
For n = 6 the a(6) = 5 P-positions are (5,1), (4,1,1), (3,3), (3,2,1), and (2,2,1,1).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Brian Hopkins, Oct 18 2015
STATUS
approved