A068728 - OEIS

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A068728

Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -3 .. 3.

%I #9 Mar 07 2024 19:51:39

%S 1,7,925,3096791,251611610655,500885416261650533,

%T 24461989414349531084868443,29358790904767905695470325002387331

%N Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -3 .. 3.

%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(7)-a(8) from _Sean A. Irvine_, Mar 07 2024