237348

Appears in sequences

• The number of upper-triangular matrices with at least one nonzero entry in each row and whose entries sum to n.at n=8A158691
• Number of nX6 0..1 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=9A224036
• Number of length n+1 0..2*7 arrays with the sum of the absolute values of adjacent differences equal to n*7.at n=4A249981
• Number of length 5+1 0..2*n arrays with the sum of the absolute values of adjacent differences equal to 5*n.at n=6A249985
• a(n) = a(n-1) + 3*a(n-2) -2*a(n-3) - 2*a(n-4), where a(0) = -1, a(1) = -1, a(2) = 2, a(3) = 1.at n=23A295852
• a(n) = a(n-1) + 3*a(n-2) -2*a(n-3) - 2*a(n-4), where a(0) = -2, a(1) = -1, a(2) = 0, a(3) = 1.at n=23A295861