|
|
A264058
|
|
Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.
|
|
1
|
|
|
64, 15625, 2073600, 239878144, 28543426704, 3622687928896, 431336822822500, 52309619901665296, 6320319513423439225, 763444065670843677649, 92439059495958921766969, 11179187008813825703018496
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=2
.10.11.16.17..4..5..6..7...10..1..2.13..4..5.20..7...10.11..2.17.18.15.20.21
.18.19..0..1.22.13.14.15...18.19..0.21.22..3.14.15....8..9..0..1.22.13.14..5
..2..3..8..9.20.21.12.23...16.17..8..9..6.11.12.23...16..3..4.19..6..7.12.23
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|