31276

Appears in sequences

• Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n; then a(n) is the trace of M(n)^(-7).at n=10A114359
• Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,0,1,1,1 for x=0,1,2,3,4.at n=5A197247
• Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,0,1,1,1 for x=0,1,2,3,4.at n=4A197248
• T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 0,0,1,1,1 for x=0,1,2,3,4.at n=49A197250
• T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 0,0,1,1,1 for x=0,1,2,3,4.at n=50A197250
• Number of length 4+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.at n=8A249660
• Number of length-n 0..7 arrays with no adjacent pair x,x+1 followed at any distance by x+1,x.at n=4A268456
• Number of length-5 0..n arrays with no adjacent pair x,x+1 followed at any distance by x+1,x.at n=6A268459
• Number of n X 6 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.at n=2A285748
• T(n,k) = Number of n X k 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.at n=30A285750
• Number of 3 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.at n=5A285752
• p-INVERT of the central binomial coefficients (A000984), where p(S) = 1 - S - S^2.at n=7A289800