login
A263988
Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having index change +-(.,.) 0,0 or 1,2.
1
1, 4, 64, 1728, 104976, 21870000, 12656250000, 16588800000000, 55662776156160000, 524753103350661120000, 13063269877417673072640000, 823784380246050405868707840000, 135558605263753575626189314498560000
OFFSET
1,2
COMMENTS
Diagonal of A263989.
LINKS
EXAMPLE
Some solutions for n=4
..7..1..9..3..4....0..8..2..3..4....0..1..2..3..4....0..1..9..3..4
..5.13..0..8..2....5..6..7..1..9....5.13..7..8..9...12.13..7..8..2
.17.11.12..6.14...10.11.12.13.14...10.11.19..6.14...10.11..5..6.14
.15.23.10.18.19...22.23.17.18.19...22.16.24.18.12...22.16.17.18.19
.20.21.22.16.24...20.21.15.16.24...20.21.15.23.17...20.21.15.23.24
CROSSREFS
Cf. A263989.
Sequence in context: A146341 A264335 A091483 * A208357 A050636 A098698
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 31 2015
STATUS
approved