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A268902
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Number of n X 6 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
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1
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240, 9720, 299088, 8250912, 214142760, 5344944120, 129834259704, 3091414865040, 72488795124312, 1679265104747616, 38520989302343760, 876481043382776664, 19806871824479466648, 444994736265664134120, 9947337685046673808176
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