A068760 Number of potential flows in n X n array with integer velocities in -13..13, i.e., number of n X n arrays with adjacent elements differing by no more than 13, counting arrays differing by a constant only once.

1, 13131, 59427841617, 95300503181597170089

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: A023320 A206149 A221156 * A252156 A102331 A064252

Adjacent sequences: A068757 A068758 A068759 * A068761 A068762 A068763

Keyword

nonn

Author

R. H. Hardin, Feb 27 2002

Status

approved