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A264248
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Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2.
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1
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8, 296, 5055, 119737, 2982248, 70618408, 1687935233, 40609607317, 977437302120, 23543636508608, 566962401161491, 13652518078761425, 328797608381693744, 7918949594113662640, 190724207496147466785, 4593488047652485016169
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