A068734 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -9 .. 9.

1, 19, 49051, 23279942261, 1954290045098180729

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: A013528 A172762 A203703 * A216529 A145851 A182374

Adjacent sequences: A068731 A068732 A068733 * A068735 A068736 A068737

Keyword

nonn,more

Author

R. H. Hardin, Feb 26 2002

Extensions

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

Status

approved