A068730 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -5 .. 5.

1, 11, 5551, 173429597, 322309309862183, 35922392489639958547367

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Crossrefs

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

Sequence in context: A177804 A023334 A216790 * A257124 A208857 A214162

Adjacent sequences: A068727 A068728 A068729 * A068731 A068732 A068733

Keyword

nonn,more

Author

R. H. Hardin, Feb 26 2002

Extensions

a(6) from Sean A. Irvine, Mar 11 2024

Status

approved