A068750 Number of potential flows in n X n array with integer velocities in -3..3, i.e., number of n X n arrays with adjacent elements differing by no more than 3, counting arrays differing by a constant only once.

1, 231, 1253329, 164185416899, 523957519578572209, 40918963843906494595507077

Offset

1,2

Links

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

Crossrefs

By size 3 X 3, ..., 6 X 6 A068744-A068747, by velocity limit 1..14 A068248-A068761, solenoidal flows A068722-A068738.

Sequence in context: A139412 A027551 A172861 * A225997 A172898 A172908

Adjacent sequences: A068747 A068748 A068749 * A068751 A068752 A068753

Keyword

nonn

Author

R. H. Hardin, Feb 27 2002

Status

approved