281961

Appears in sequences

• Numbers k such that k | 4^k + 3^k + 2^k.at n=25A057238
• Smallest square that contains the digits of n in its exact middle.at n=19A062689
• Smallest square k > 0 such that n*k + 1 is also a square or 0 if no such term exists, i.e., when n is a square.at n=42A069018
• Smallest square k > 1 such that n*k + 1 is also a square or 0 if no such term exists, i.e., when n is a square.at n=42A069019
• Coefficients of power series A(x) consist entirely of squares, where A(x) = A083352(x)^2 + A083352(x) - 1.at n=30A083353
• Squares which are the sum of two or more consecutive squares.at n=21A151557
• Squares which are a sum of consecutive squares starting with 38^2.at n=2A180465
• Number of nX4 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=4A230064
• Number of nX5 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=3A230065
• T(n,k)=Number of nXk 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=31A230068
• T(n,k)=Number of nXk 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=32A230068