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A189311
Number of nX8 array permutations with each element moving zero or one space diagonally, horizontally or vertically
1
34, 351521, 710856569, 2208514085834, 6245362716915409, 18184674267197745416, 52723822292058373369892, 153220700522675894994117846, 445293170067952800448783450060, 1294456714606839116930081199704670
OFFSET
1,1
COMMENTS
Column 8 of A189312
LINKS
EXAMPLE
Some solutions for 3X8
..0..1..2..3..4..5..6..7....0..1..2..3..4..5..6..7....0..1..2..3..4..5..6..7
..8..9.10.11.13.12.15.14...17..9.19.11.20.12.13.23...17..9.10.20.12.13.23.14
.16.17.19.18.20.21.22.23...16..8.18.10.21.22.14.15...16..8.18.11.19.21.22.15
CROSSREFS
Sequence in context: A189649 A280901 A279376 * A189253 A250488 A236237
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 19 2011
STATUS
approved