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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

Column 7 of A189280

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..182

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

Sequence in context: A232003 A221248 A220680 * A151656 A264088 A264277

Adjacent sequences:  A189275 A189276 A189277 * A189279 A189280 A189281

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 19 2011

STATUS

approved

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Last modified June 12 08:13 EDT 2021. Contains 344943 sequences. (Running on oeis4.)