80812

Appears in sequences

• Number of (n+1)X4 binary arrays with no 2X2 subblock containing fewer than two 1s.at n=3A184201
• Number of (n+1)X5 binary arrays with no 2X2 subblock containing fewer than two 1s.at n=2A184202
• T(n,k)=Number of (n+1)X(k+1) binary arrays with no 2X2 subblock containing fewer than two 1s.at n=17A184207
• T(n,k)=Number of (n+1)X(k+1) binary arrays with no 2X2 subblock containing fewer than two 1s.at n=18A184207
• Number of arrays of n+2 integers in -4..4 with sum zero and the sum of every adjacent pair being odd.at n=6A202072
• T(n,k)=Number of arrays of n+2 integers in -k..k with sum zero and the sum of every adjacent pair being odd.at n=51A202076
• Number of arrays of 9 integers in -n..n with sum zero and the sum of every adjacent pair being odd.at n=3A202080
• Number of (n+1) X (3+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).at n=3A235253
• Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).at n=2A235254
• T(n,k) is the number of (n+1) X (k+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).at n=17A235258
• T(n,k) is the number of (n+1) X (k+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).at n=18A235258
• Integers n such that p = 4n + 1, q = 4p + 3, r = 4q + 5, s = 4r + 7 and t = 4s + 9 are all prime.at n=9A243528