A068748 Number of potential flows in n X n array with integer velocities in -1..1, i.e., number of n X n arrays with adjacent elements differing by no more than 1, counting arrays differing by a constant only once.

1, 19, 1665, 690437, 1366395515, 12961320464027, 590771311004409091, 129585582154154757804255, 136932044780329080616264070553, 697547669137459516115242710064880165

Offset

1,2

Links

Table of n, a(n) for n=1..10.

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: A054949 A375219 A242564 * A289736 A180394 A220990

Adjacent sequences: A068745 A068746 A068747 * A068749 A068750 A068751

Keyword

nonn

Author

R. H. Hardin, Feb 27 2002

Status

approved