96941

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 21.at n=35A031609
• Number of n X 2 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=5A202883
• Number of nX6 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=1A202887
• T(n,k)=Number of nXk 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=22A202889
• T(n,k)=Number of nXk 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=26A202889