A068732 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -7 .. 7.

1, 15, 19097, 2789847759, 44976296745414509, 80633423581611695455020595

Offset: 1

Author

R. H. Hardin, Feb 26 2002

Keywords

• nonn
• more

Crossrefs

By size 3 X 3, ..., 6 X 6 A068722-A068725, by velocity limit 1..13 A068726-A068738.

Extensions

a(5)-a(6) from Sean A. Irvine, Mar 09 2024