69468

Appears in sequences

• Indices where 2 occurs in A124151.at n=29A124401
• Numbers k such that 1 + Sum_{i=1..k} 2^(2*i-1) is prime.at n=34A127936
• Number of nX6 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.at n=2A283948
• T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.at n=30A283950
• Number of 3Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.at n=5A283952