cp's OEIS Frontend

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.

%I A068750 #8 Jul 30 2017 22:23:34
%S A068750 1,231,1253329,164185416899,523957519578572209,
%T A068750 40918963843906494595507077
%N 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.
%Y A068750 By size 3 X 3, ..., 6 X 6 A068744-A068747, by velocity limit 1..14 A068248-A068761, solenoidal flows A068722-A068738.
%K A068750 nonn
%O A068750 1,2
%A A068750 _R. H. Hardin_, Feb 27 2002