%I #8 Jul 30 2017 22:22:10

%S 1,2255,542131425,14285299502131463

%N Number of potential flows in n X n array with integer velocities in -7..7, i.e., number of n X n arrays with adjacent elements differing by no more than 7, counting arrays differing by a constant only once.

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

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 27 2002