

A000530


Let p(n, s, x) be predicate that number of occurrences of s's in x >= 2*n  the length of the longest sequence of s's in x. Then a(n)=#{x in {0,1}*  x ends in 0 and p(n,0,x) and (there is no prefix y of x such that p(n,0,y) or p(n,1,y))}.


1




OFFSET

1,2


COMMENTS

a(9)>=29995812 (probably equal to this value)


LINKS



CROSSREFS



KEYWORD

nonn,hard,more


AUTHOR

Jonas Wallgren [ jwc(AT)ida.liu.se ]


EXTENSIONS



STATUS

approved



