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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A235786 Number of (3+1)X(n+1) 0..2 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise 1
 3199, 86369, 1998795, 40810011, 775083193, 13779480739, 234239906977, 3826967361207, 60695780199313, 938335707129523, 14215200297894007, 211669896956361765, 3107619805369124633, 45081219344278229115 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 3 of A235784 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=2 ..1..0..2....2..0..1....2..0..2....2..2..2....2..1..1....1..0..2....0..2..0 ..2..2..0....0..0..2....0..1..2....2..2..0....1..0..1....1..2..1....2..2..2 ..0..1..0....0..1..2....0..0..0....1..2..2....1..2..1....0..1..2....0..2..2 ..0..1..0....1..1..2....2..0..0....2..2..2....0..1..1....1..2..0....1..1..2 CROSSREFS Sequence in context: A225056 A306197 A211840 * A235781 A235562 A269114 Adjacent sequences: A235783 A235784 A235785 * A235787 A235788 A235789 KEYWORD nonn AUTHOR R. H. Hardin, Jan 15 2014 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 April 18 04:24 EDT 2024. Contains 371767 sequences. (Running on oeis4.)