Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 21.

A159408

Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 21.

Terms

    a(0) =80a(1) =81970a(2) =198598120a(3) =364613564592

External references