218120

Appears in sequences

• T(n,k)=number of nXk binary matrices with floor((n*k)/2) 1's and rows and columns in lexicographically strictly increasing order.at n=70A180977
• a(n) = A351477(n) * FA where F is the Fermat point of a primitive integer-sided triangle ABC with A < B < C < 2*Pi/3 and FA + FB + FC = A336329(n).at n=18A351801