184248

Appears in sequences

• Number of n X 7 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.at n=2A233154
• T(n,k) = Number of n X k 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.at n=38A233155
• Number of 3 X n 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.at n=6A233156
• Number of ways to write n as an ordered sum of 9 squarefree numbers.at n=16A341069
• a(n) = Sum_{k=0..n} (-1)^k * (k+1) * binomial(5*n-4*k+1,n-k)/(5*n-4*k+1).at n=7A390741