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A263975 Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change (+-,+-) 0,2 1,1 or 1,0. 1
16, 1441, 86633, 2604481, 102742049, 4952396901, 224559467921, 9479627840080, 407499168253313, 17951972257163801, 787313274461726480, 34237567537967020880, 1490472641241784860976, 65073777514668815019417 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A263973.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..92

EXAMPLE

Some solutions for n=3

..2..4..0..7....2..3..5..7....5..3..0..7....5..3..0..7....2..3..0..6

..1..8..3.11....6..0..1.10....8..1.10..2....6..2..1.10....1..7..9..5

.13.12..5..6...13..4..8.14....4.12..6.14....4.12.13.14...12..4..8.15

.14.15..9.10....9.15.12.11....9.15.11.13....8.15..9.11...14.10.11.13

CROSSREFS

Cf. A263973.

Sequence in context: A221607 A160251 A106176 * A193128 A223101 A086815

Adjacent sequences:  A263972 A263973 A263974 * A263976 A263977 A263978

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 30 2015

STATUS

approved

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Last modified February 19 07:51 EST 2019. Contains 320309 sequences. (Running on oeis4.)