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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A194192 Number of ways to arrange 7 indistinguishable points on an n X n square grid so that no three points are collinear at any angle. 3
 0, 0, 0, 204, 26700, 1073076, 15657764, 159413700, 1108580092, 6030207624, 26852315940, 104865006648, 354993232192, 1098793355508, 3109294280324 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS Column 7 of A194193. LINKS EXAMPLE Some solutions for 4 X 4: ..0..0..1..1....1..0..1..0....0..0..1..0....0..0..0..1....1..0..1..0 ..0..0..0..1....0..0..0..1....0..0..1..1....1..0..1..0....0..1..0..0 ..1..1..0..0....0..1..0..1....1..1..0..0....1..0..1..0....0..1..0..1 ..0..1..1..0....0..1..1..0....0..1..0..1....0..1..0..1....1..0..1..0 CROSSREFS Sequence in context: A253680 A209790 A348603 * A339199 A263505 A270605 Adjacent sequences:  A194189 A194190 A194191 * A194193 A194194 A194195 KEYWORD nonn AUTHOR R. H. Hardin, Aug 18 2011 STATUS approved

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.

Last modified August 17 22:09 EDT 2022. Contains 356189 sequences. (Running on oeis4.)