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Search: id:A133791
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| A133791 |
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Number of n X n binary matrices with every 1 adjacent to some 0 horizontally, vertically, diagonally or anti-diagonally. |
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1
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| 1, 15, 417, 50625, 24879489, 48231228511, 373654052856545, 11546079143118274625, 1422756868491071266637985, 699232611373976058162941025423, 1370556061582419558173913152072112161
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