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A201622
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Number of nX5 0..3 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor
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1
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16, 718, 31802, 2111763, 136175057, 8368969235, 464328365996, 23135668030252, 1040850319379231, 42653434489979374, 1606362705401822170, 56058651943376958129, 1826011093775518985924, 55867244848599391254270
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