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%I #10 Mar 11 2024 15:43:52
%S 1,25,146797,274074872265,156588834507399529975
%N Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -12 .. 12.
%Y By size 3 X 3, ..., 6 X 6 A068722-A068725, by velocity limit 1..13 A068726-A068738.
%K nonn,more
%O 1,2
%A _R. H. Hardin_, Feb 26 2002
%E a(5) from _Sean A. Irvine_, Mar 10 2024
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