|
|
A189278
|
|
Number of nX7 array permutations with each element not moved or moved diagonally or antidiagonally by one
|
|
1
|
|
|
1, 441, 28125, 3553225, 361199937, 39085685401, 4145792570105, 441979857682489, 47045498167288233, 5009341586507664025, 533335273492176377097, 56783742831233576420089, 6045707037507297581064681
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for 3X7
..0..1..2..3.12.13..6....0..7..2..3.10.11..6....0..9..2..3..4..5.12
..7.14..9.16.19..4..5...15.16..1..4..5.18.19...15.14..1.10.19..6.13
..8.15.10.17.18.11.20...14..9..8.17.12.13.20....8..7.16.17.18.11.20
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|