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%I #8 Jul 30 2017 22:20:28
%S 1,13131,59427841617,95300503181597170089
%N 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.
%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
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