161621

Appears in sequences

• Expansion of (1/(1-x)^3)*c(x/(1-x)^3), c(x) the g.f. of A000108.at n=8A162481
• Number of nX3 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.at n=4A232943
• Number of n X 5 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.at n=2A232945
• T(n,k)=Number of nXk 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.at n=23A232948
• T(n,k)=Number of nXk 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.at n=25A232948