303212

Appears in sequences

• Numbers n such that sigma(n)/phi(n) = 25/4, where sigma = A000203, phi = A000010.at n=11A165629
• Number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2 X 2 subblock diagonal sum less antidiagonal sum.at n=4A185848
• Number of (n+1)X6 0..2 arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.at n=0A185852
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.at n=10A185856
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.at n=14A185856
• Numbers k such that sigma(k) = psi(k) + phi(k).at n=34A389478