242370

Appears in sequences

• 1/12 the number of (n+2) X 4 0..2 arrays with each 3 X 3 subblock containing three of each value.at n=5A184379
• 1/12 the number of (n+2)X8 0..2 arrays with each 3X3 subblock containing three of each value.at n=1A184383
• T(n,k)=1/12 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing three of each value.at n=22A184386
• T(n,k)=1/12 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing three of each value.at n=26A184386
• Number of length-n 0..5 arrays with no repeated value equal to the previous repeated value.at n=6A269464
• Number of length-7 0..n arrays with no repeated value equal to the previous repeated value.at n=4A269471
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/3)} binomial(n,3*k+1) * a(k).at n=18A352879