25340

Appears in sequences

• Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors.at n=2A206120
• Number of (n+1)X4 0..2 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors.at n=2A206123
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors.at n=12A206128
• Number of (n+1) X (4+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).at n=11A235285
• Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 10.at n=11A242508
• Triangle read by rows: T(n, k) = Sum_{t=k..n-2} (-1)^(t-k)*(n-t)!*binomial(t,k)*binomial(n-2,t).at n=40A264027
• Lower (1/2)-midsequence of Fibonacci numbers (A000045) and tribonacci numbers (A000213); see Comments.at n=19A390348
• Upper (1/2)-midsequence of Fibonacci numbers (A000045) and tribonacci numbers (A000213); see Comments.at n=19A390349