login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A093937 Number of tilings of a centro-symmetric octagon of integral sides, all of length n, into squares and 45-degree rhombi with unitary side lengths. 1

%I

%S 8,5383,273976272,1043065776718923,296755610108278480324496,

%T 6311874633104458029014418062576427,

%U 10042431607269542604521005988830015956735912072,1195803046003221669232199949110252888466561872833354476549925

%N Number of tilings of a centro-symmetric octagon of integral sides, all of length n, into squares and 45-degree rhombi with unitary side lengths.

%H N. Destainville, R. Mosseri and F. Bailly, <a href="http://arXiv.org/abs/math.CO/0302105">A formula for the number of tilings of an octagon by rhombi</a>, arXiv:math/0302105 [math.CO], 2003-2004.

%K nonn,hard

%O 1,1

%A _Ralf Stephan_, May 23 2004

%E More terms from _Maxwell Hutchinson_, Dec 23 2010

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 30 17:11 EST 2023. Contains 359945 sequences. (Running on oeis4.)