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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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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..0..3..6..7..4....0..1..6..3..4....0..2..3..4..8....1..5..3..7..4
..5..8..1..2..9....7.10.11..2..9....5..7..1.12..9....6..0..8..2..9
.11.13.16.17.14...12..5.13.14..8...11.13..6.17.14...10.11.16.14.18
.15.10.21.12.19...15.20.17.22.19...15.10.19.22.23...17.20.19.12.13
.20.22.24.23.18...21.23.16.24.18...20.21.16.24.18...21.15.22.23.24
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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