448920

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 67.at n=9A031745
• Number of nX2 0..n+2-2 arrays with upper left zero and lower right n+2-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=6A265460
• T(n,k)=Number of nXk 0..n+k-2 arrays with upper left zero and lower right n+k-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=34A265466
• Number of 7Xn 0..7+n-2 arrays with upper left zero and lower right 7+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=1A265472