A068737 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -12 .. 12.

1, 25, 146797, 274074872265, 156588834507399529975

Offset

1,2

Links

Table of n, a(n) for n=1..5.

Crossrefs

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

Sequence in context: A076445 A013835 A211600 * A151649 A122500 A347812

Adjacent sequences: A068734 A068735 A068736 * A068738 A068739 A068740

Keyword

nonn,more

Author

R. H. Hardin, Feb 26 2002

Extensions

a(5) from Sean A. Irvine, Mar 10 2024

Status

approved