login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A263545 T(n,k)=Number of (n+2)X(k+2) arrays of permutations of 0..(n+2)*(k+2)-1 with each element moved 0 or 1 knight moves and no more than 3 elements left unmoved. 2
20, 124, 124, 884, 3328, 884, 2960, 32284, 32284, 2960, 43808, 692605, 1704784, 692605, 43808, 128576, 12621312, 26361664, 26361664, 12621312, 128576, 1845824, 200111881, 6446653792 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.....20......124......884.....2960......43808....128576.1845824

....124.....3328....32284...692605...12621312.200111881

....884....32284..1704784.26361664.6446653792

...2960...692605.26361664

..43808.12621312

.128576

LINKS

Table of n, a(n) for n=1..24.

EXAMPLE

Some solutions for n=2 k=4

..0.12.13..7..8.16....0.12..6.11.17.16....0.12.15..7..8.16....0.12.10..3.17.16

.19..3..4.17.23.22...19..3..8.20..2.22...19.18.21..1.23..3...14.20.19..5..2.22

.20..2..1.11..5.21....1.21.18.23..5..4...20..2.22..4..5.17....1.21.18.23..8..4

.18..6..9.10.14.15...14.15..7.13..9.10...14..6..9.13.11.10....7..6..9.13.11.15

CROSSREFS

Sequence in context: A156255 A004634 A222859 * A227057 A263543 A249709

Adjacent sequences:  A263542 A263543 A263544 * A263546 A263547 A263548

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Oct 20 2015

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 26 17:32 EDT 2020. Contains 338027 sequences. (Running on oeis4.)