40873

Appears in sequences

• Denominators associated with A109139.at n=10A109140
• Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 9.at n=12A242507
• Number of n X 3 binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.at n=16A266465
• a(n) = n*(1-3n+2*n^2+2*n^3)/2.at n=14A277977
• Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=5A317217
• Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=2A317220
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=30A317222
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=33A317222
• Number of ways to tile an n X n square using rectangles with distinct dimensions where all the rectangle edge lengths are prime numbers.at n=16A361413
• a(n) = Sum_{k=0..floor(n/3)} 2^(n-3*k) * binomial(2*k+1,2*n-6*k).at n=24A387650