337977
domain: N
Appears in sequences
- Numbers x,y,z such that UnitarySigma(x) = UnitarySigma(y) = UnitarySigma(z) = 3*(x*y*z)^(1/2)/(- x^(1/2) + 8*y^(1/2) - 5*z^(1/2)), z<=y<=x; sequence gives x.at n=10A144672
- Number of nX2 0..4 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.at n=8A203340
- Number of n X n 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=5A230646
- Number of nX6 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=5A230650
- T(n,k)=Number of nXk 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=60A230652
- Number of n X n 0..2 black square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=5A230657
- T(n,k)=Number of nXk 0..2 black square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).at n=60A230661
- a(1) = 1, then multiply, subtract, and add 2, 3, 4; 5, 6, 7; ... in that order.at n=16A362272