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A263967
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Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change (+-,+-) 0,0 1,1 or 1,2.
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1
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25, 1685, 95161, 3801496, 180329601, 8793791605, 417374263952, 19718635628325, 935640860916425, 44391937106866449, 2104497816698168833, 99772475347949387221, 4730590358279991615088, 224290743715077656954960
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