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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A259507 Number of (n+1)X(n+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0101 0111 1
 11, 129, 3270, 189211, 25009044, 7648655920, 5419416491691, 8914474231755265, 34039639215186145019, 301765460087856679774300, 6209472935212672846469197010, 296556812586707699012345431324530 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A259515 LINKS R. H. Hardin, Table of n, a(n) for n = 1..14 EXAMPLE Some solutions for n=4 ..0..0..0..0..0....1..0..0..1..0....1..0..1..0..1....0..0..0..0..1 ..0..1..0..0..1....0..1..0..0..1....0..1..0..0..0....0..0..1..0..0 ..0..0..1..0..0....1..0..1..0..0....1..0..1..0..1....0..0..0..0..0 ..0..0..0..1..0....0..0..0..1..0....0..1..0..1..0....0..0..0..1..0 ..0..0..0..0..0....1..0..1..1..1....0..0..1..1..1....1..0..0..0..0 CROSSREFS Cf. A259515 Sequence in context: A024144 A201877 A015602 * A183837 A015603 A184280 Adjacent sequences: A259504 A259505 A259506 * A259508 A259509 A259510 KEYWORD nonn AUTHOR R. H. Hardin, Jun 29 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 29 22:39 EDT 2023. Contains 363044 sequences. (Running on oeis4.)