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A291076
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Number of prime 3-ary toroidal arrays with 2 rows and n columns.
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1
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3, 18, 116, 810, 5880, 44220, 341484, 2690010, 21522228, 174336264, 1426403748, 11767874940, 97764009000, 817028131140, 6863037256208, 57906879556410, 490505340309600, 4169295414140220, 35548729381861332, 303941636389253448, 2605214026691600584
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OFFSET
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1,1
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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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