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 A189355 T(n,k)=Number of nXk array permutations with each element moving one space diagonally, horizontally or vertically 9
 0, 1, 1, 0, 4, 0, 1, 13, 13, 1, 0, 45, 48, 45, 0, 1, 160, 557, 557, 160, 1, 0, 565, 3632, 12592, 3632, 565, 0, 1, 2005, 30769, 237297, 237297, 30769, 2005, 1, 0, 7108, 229248, 4791913, 10252800, 4791913, 229248, 7108, 0, 1, 25209, 1815601, 94635005 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS Table starts .0.....1.........0............1................0....................1 .1.....4........13...........45..............160..................565 .0....13........48..........557.............3632................30769 .1....45.......557........12592...........237297..............4791913 .0...160......3632.......237297.........10252800............519621497 .1...565.....30769......4791913........519621497..........64731638400 .0..2005....229248.....94635005......24728774144........7675175968337 .1..7108...1815601...1883785285....1206541811872......927311536349401 .0.25209..13960720..37399042560...58289324009008...111267210412798665 .1.89401.108880333.743166198493.2827118724742121.13385995390731369181 LINKS R. H. Hardin, Table of n, a(n) for n = 1..144 EXAMPLE Some solutions for 5X3 ..1..0..5....4..5..1....4..0..5....4..5..1....3..5..1....1..2..5....3..2..5 ..6..3..2....7..0..2....6..1..2....0..8..2....0..8..2....0..7..8....0..1..4 ..7..8..4....3..6.11....3..8..7....3..6..7....9..4..7...10..3..4....9..8..7 .12.11.10...10.14..8...12.11.14...13.14.10...12..6.14...13..6.14...12..6.10 ..9.14.13....9.12.13...13..9.10....9.12.11...13.10.11....9.12.11...13.14.11 CROSSREFS Sequence in context: A228270 A335748 A266488 * A221817 A054375 A195739 Adjacent sequences: A189352 A189353 A189354 * A189356 A189357 A189358 KEYWORD nonn,tabl AUTHOR R. H. Hardin Apr 20 2011 STATUS approved

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Last modified June 6 16:27 EDT 2023. Contains 363148 sequences. (Running on oeis4.)