399930

Appears in sequences

• Numbers k such that k divides prime(k) + prime(k+1).at n=21A066895
• Numbers n such that round(prime(n)/n) < round(prime(n-1)/(n-1)).at n=13A079417
• Half the number of (n+1) X 2 0..3 arrays with every 2 X 2 subblock having two or four distinct clockwise edge differences.at n=4A209906
• Half the number of (n+1)X6 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=0A209910
• T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=10A209913
• T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=14A209913