Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -11 .. 11.

A068736

Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -11 .. 11.

Terms

    a(0) =1a(1) =23a(2) =105205a(3) =129540052071

External references