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A263952 Number of (n+2)X(1+2) arrays of permutations of 0..n*3+5 filled by rows with each element moved 0 or 1 knight moves, and rows and columns in increasing lexicographic order. 1
6, 36, 158, 614, 2596, 11045, 47252, 200690, 856618, 3643558, 15489384, 65863683, 280302564, 1192057233, 5068539465, 21551848324, 91660701076, 389792005662, 1657541261871, 7048510785986, 29974349818876, 127465944902477 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A263955.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..1..2....0..1..7....0..1..2....0..1..3....0..1..7....0..1..3....0..1..7

..3..4.10....2..4.10....3..4..6....2..4..6....3..4..6....2..4.10....2..4..6

..5.12..9....5.14.13....5..7..9....5..7..8....5..2..8....5.12..9....5.14..3

..8.15..6....8..3.11....8.17.12....9.10.11....9.10.12....8.15..6....8.17.16

.11.13..7...12..6..9...11.13.14...12.13.15...11.13.14...11.13..7...12.13..9

.14.16.17...15.16.17...15.16.10...14.16.17...15.16.17...14.16.17...15.11.10

CROSSREFS

Cf. A263955.

Sequence in context: A055404 A223946 A223919 * A281394 A225380 A225012

Adjacent sequences:  A263949 A263950 A263951 * A263953 A263954 A263955

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 30 2015

STATUS

approved

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Last modified June 24 05:21 EDT 2019. Contains 324318 sequences. (Running on oeis4.)