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A264133 Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 0,2 or 1,2. 1
1, 13, 169, 1040, 6400, 53280, 443556, 3383280, 25806400, 203738480, 1608491236, 12558632416, 98054154496, 768752950768, 6027088830169, 47188038099235, 369450492999025, 2893968831142495, 22668952280018641, 177540636808778880 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 2 of A264131.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..3..4..1..2....0..1..9..3..4....0..1..4..3..2....2..1..0..3..4

..5..8.14..6..9....7..6..5..8..2....5..8..7..6..9....7..6.14..8..9

.12.13.10.11..7...10.13.12.11.14...10.11.14.13.12...10.11..5.13.12

CROSSREFS

Cf. A264131.

Sequence in context: A206990 A264367 A015961 * A221965 A206932 A206867

Adjacent sequences:  A264130 A264131 A264132 * A264134 A264135 A264136

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 03 2015

STATUS

approved

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Last modified July 8 00:40 EDT 2020. Contains 335502 sequences. (Running on oeis4.)