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!)
A000532 Number of Hamiltonian paths from NW to SW corners in an n X n grid. 14
1, 1, 2, 8, 86, 1770, 88418, 8934966, 2087813834, 1013346943033, 1111598871478668, 2568944901392936854, 13251059359839620127088, 145194816279817259193401518, 3524171261632305641165676374930 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Walks reaching each cell exactly once.

LINKS

KeyTo9(AT)Fans, Table of n, a(n) for n = 1..18

KeyTo9(AT)Fans, Chinese web page giving the sequence up to 18 items.

Douglas M. McKenna, Tendril Motifs for Space-Filling, Half-Domino Curves, in: Bridges Finland Conference Proceedings, 2016, pp. 119-126.

CROSSREFS

Main diagonal of A271592.

Cf. A181688, A181689, A014524, A014585.

Cf. A001184, A145157, A120443, A003763, A271507, A007764, A121785, A121789.

Sequence in context: A261730 A052456 A276991 * A333366 A083831 A134245

Adjacent sequences:  A000529 A000530 A000531 * A000533 A000534 A000535

KEYWORD

nonn,walk

AUTHOR

Russ Cox

EXTENSIONS

More terms from Zhao Hui Du, Jul 08 2008

Edited by Franklin T. Adams-Watters, Jul 03 2009

Name clarified by Andrew Howroyd, Apr 10 2016

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 July 13 08:26 EDT 2020. Contains 335685 sequences. (Running on oeis4.)