A068733 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -8 .. 8.

1, 17, 31465, 8576204625, 331136639667811845

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: A171687 A178050 A110915 * A066161 A125040 A125042

Adjacent sequences: A068730 A068731 A068732 * A068734 A068735 A068736

Keyword

nonn,more

Author

R. H. Hardin, Feb 26 2002

Extensions

a(5) from Sean A. Irvine, Mar 11 2024

Status

approved