A068756 Number of potential flows in n X n array with integer velocities in -9..9, i.e., number of n X n arrays with adjacent elements differing by no more than 9, counting arrays differing by a constant only once.

1, 4579, 3582226465, 492225938556374973

Offset

1,2

Links

Table of n, a(n) for n=1..4.

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: A030471 A234677 A252063 * A252099 A252405 A252580

Adjacent sequences: A068753 A068754 A068755 * A068757 A068758 A068759

Keyword

nonn

Author

R. H. Hardin, Feb 27 2002

Status

approved