666111

Appears in sequences

• Smallest multiple of n using all digits of (n-1) with the same frequency and no others; or 0 if no such number exists.at n=16A083959
• Number of (w,x,y,z) with all terms in {1,...,n} and 2*w*x>=3*y*z.at n=36A211923
• List of words over {1,6} with equal numbers of 1's and 6's.at n=27A214524