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!)
A288248 Number of essentially different simple n-sided lattice polygons with minimum area subject to the conditions of A288247. 2
1, 1, 2, 2, 3, 4, 1, 3, 2, 10, 6, 5, 11, 4, 11, 19, 17, 55 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,3

COMMENTS

Polygons differing only by rotation and/or reflection are counted only once.

LINKS

Table of n, a(n) for n=3..20.

Michael Collier, Herbert Kociemba, Tom Sirgedas, Al Zimmermann - Polygonal Areas. Discussion in newsgroup dxdy.ru

CROSSREFS

Cf. A288247, A288250.

Sequence in context: A071507 A071509 A323731 * A159804 A330995 A104567

Adjacent sequences:  A288245 A288246 A288247 * A288249 A288250 A288251

KEYWORD

nonn,more

AUTHOR

Hugo Pfoertner, Jun 07 2017

EXTENSIONS

Based on an exhaustive search performed by Michael Collier, a(12) corrected by Hugo Pfoertner, Jun 10 2017

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 24 05:38 EDT 2021. Contains 348217 sequences. (Running on oeis4.)