

A114879


Numbers n coprime to 3 such that there exists an (n1)digit ternary number wherein each substring is indivisible by n.


0




OFFSET

1,1


COMMENTS

a(7) > 64.


LINKS



EXAMPLE

20 is there because each substring of 1121212211122121211 (base 3) is indivisible by 20.


CROSSREFS



KEYWORD

nonn,base,more,hard


AUTHOR



STATUS

approved



