400672

Appears in sequences

• T(n,k)=number of nXk binary matrices with rows and columns in lexicographically strictly increasing order.at n=59A180984
• T(n,k)=number of nXk binary matrices with rows and columns in lexicographically strictly increasing order.at n=61A180984
• Wiener index of graphs of f.c.c. unit cells in a line = Sum of distances in face-centered cubic grid unit cells connected in a row.at n=23A273322