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A068726
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Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -1 .. 1.
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17
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1, 3, 35, 2053, 569397, 758541101, 4855339973053, 149596683621380451, 22207207625437795523567, 15894065026795563049567474623, 54873022990102933765115144179983347, 914167438412564688754864863927964270928677, 73512018227635160780006728165405332017240587741389
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OFFSET
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1,2
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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