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A189648 Number of nX7 array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally 1
21, 24577, 11047585, 6156828073, 3292827578005, 1778231752192145, 958681588788944613, 517069529154777840681, 278864582730126081862829, 150399411952876520217908417, 81114338143785708962035111845 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A189650

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..78

EXAMPLE

Some solutions for 3X7

..0..7..2..4..3..5.12....0..7.10..2..3..6..5....0..2..3..9..5..4..6

..1..9.15.10.11..6.13....1..9.15.11.19..4.12....1.14.15.10.12.11.19

..8.14.16.17.18.20.19....8.14.16.17.18.13.20....8..7.16.18.17.13.20

CROSSREFS

Sequence in context: A001167 A250066 A299035 * A283841 A100414 A189310

Adjacent sequences:  A189645 A189646 A189647 * A189649 A189650 A189651

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 24 2011

STATUS

approved

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Last modified September 18 09:52 EDT 2019. Contains 327168 sequences. (Running on oeis4.)