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Number of potential flows in 5 X 5 array with integer velocities in -n..n, i.e., number of 5 X 5 arrays with adjacent elements differing by no more than n, counting arrays differing by a constant only once.
21

%I #12 Jul 30 2017 22:24:35

%S 1,1366395515,184422574177355,523957519578572209,

%T 207345516734034667209,24953087551680958151267,

%U 1354915464537160758459123

%N Number of potential flows in 5 X 5 array with integer velocities in -n..n, i.e., number of 5 X 5 arrays with adjacent elements differing by no more than n, counting arrays differing by a constant only once.

%Y 2 X 2 A063496, 3 X 3 A068744, 4 X 4 A068745, 6 X 6 A068747, by velocity limit 1..14 A068748-A068761, solenoidal flows A068722-A068738.

%K nonn

%O 0,2

%A _R. H. Hardin_, Feb 27 2002