OFFSET
1,7
LINKS
Wikipedia, Chomp
EXAMPLE
a(9)=4 since positions with multiple winning moves are 4+3+2 to 4+3 or to 4+2+2, 4+3+1+1 to 4+3 or to 4+1+1+1 or to 3+3+1+1, 4+2+2+1 to 4+2+2 or to 4+1+1+1 or to 2+2+2+1 and 3+3+2+1 to 3+3+1+1 or to 2+2+2+1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Henry Bottomley, Sep 06 2005
STATUS
approved