A068738 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -13 .. 13.

1, 27, 199655, 547436323149, 535691029084640060219

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: A008974 A308537 A281956 * A132649 A086166 A132661

Adjacent sequences: A068735 A068736 A068737 * A068739 A068740 A068741

Keyword

nonn,more

Author

R. H. Hardin, Feb 26 2002

Extensions

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

Status

approved