This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A205631 Number of 7X(n+1) 0..2 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..2 introduced in row major order 1
 64512, 625512, 8636544, 153531936, 3042034560, 63787803360, 1367618567424, 29643515275104, 645365452421376, 14080651801791360, 307493877105274752, 6718116600373467360, 146806374332666553600, 3208378167723075141600 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 6 of A205626 LINKS R. H. Hardin, Table of n, a(n) for n = 1..36 EXAMPLE Some solutions for n=4 ..0..0..0..0..1....0..0..1..2..2....0..0..0..0..1....0..0..1..0..1 ..2..0..1..0..0....1..2..1..0..0....0..1..0..2..0....1..2..2..2..1 ..2..0..2..2..1....2..2..2..1..0....2..1..0..1..1....2..2..0..2..2 ..2..2..2..1..0....0..0..0..1..2....2..2..1..2..1....1..1..1..1..1 ..1..0..0..1..0....0..1..0..0..1....0..0..0..2..0....1..1..1..1..1 ..2..1..0..0..2....2..1..2..2..1....2..0..1..0..1....2..1..2..1..2 ..0..1..2..1..1....2..2..2..1..0....1..0..1..0..1....2..1..2..0..0 CROSSREFS Sequence in context: A054738 A031859 A182811 * A205333 A165689 A203712 Adjacent sequences:  A205628 A205629 A205630 * A205632 A205633 A205634 KEYWORD nonn AUTHOR R. H. Hardin Jan 29 2012 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .