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A263976
Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change (+-,+-) 0,2 1,1 or 1,0.
0
0, 13856, 2940624, 226810352, 24130893568, 4071813326144, 609140174072448, 78375823545772864
OFFSET
1,2
COMMENTS
Row 4 of A263973.
EXAMPLE
Some solutions for n=2
..2..5..0....2..5..0....4..5..0....2..5..0....2..5..0....2..3..0....2..4..5
..1..7..8....1..8..7....1..2..7....1..6..8....1..8..3....5..1..7....1..0..8
..4..3.11....4..3..6....9..3.10....3.10..4....4.11..6....9..4.11....3..9.11
.13..6..9...12.14.13....6.13..8...13.12..7...13.12..7....6.13..8...13..6..7
.14.10.12....9.10.11...14.11.12...14..9.11...14..9.10...14.10.12...14.10.12
CROSSREFS
Cf. A263973.
Sequence in context: A325886 A151642 A235004 * A189989 A069302 A109483
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 30 2015
STATUS
approved