28021

Appears in sequences

• Number of (n+2) X (3+2) 0..1 arrays with no 3 x 3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 3.at n=36A255796
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each row nonprime and column prime, read as a binary number with top and left being the most significant bits.at n=29A261942
• Number of (2+1)X(n+1) 0..1 arrays with each row nonprime and column prime, read as a binary number with top and left being the most significant bits.at n=6A261944
• Starts of runs of 3 consecutive numbers with the same total binary weight of their divisors (A093653).at n=16A338453