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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A183541 T(n,k)=Number of nXk 0..3 arrays with each element equal to either the sum mod 4 of its horizontal and vertical neighbors or the sum mod 4 of its diagonal and antidiagonal neighbors 7
 1, 4, 4, 7, 16, 7, 10, 43, 43, 10, 22, 128, 133, 128, 22, 43, 416, 1326, 1326, 416, 43, 73, 1287, 4583, 16704, 4583, 1287, 73, 139, 3996, 28498, 124568, 124568, 28498, 3996, 139, 268, 12594, 146315, 1260440, 1150368, 1260440, 146315, 12594, 268, 487, 39539 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ...1.....4......7......10......22......43.......73....139...268.487 ...4....16.....43.....128.....416....1287.....3996..12594.39539 ...7....43....133....1326....4583...28498...146315.714260 ..10...128...1326...16704..124568.1260440.12593728 ..22...416...4583..124568.1150368 ..43..1287..28498.1260440 ..73..3996.146315 .139.12594 .268 LINKS R. H. Hardin, Table of n, a(n) for n = 1..49 EXAMPLE Some solutions for 4X3 ..3..0..1....0..1..0....0..0..0....2..0..0....0..3..3....3..3..0....2..0..0 ..3..2..1....3..0..2....0..0..1....2..2..0....3..0..0....0..0..0....0..2..0 ..2..2..2....2..2..2....3..0..1....2..3..2....0..0..1....0..1..0....3..0..1 ..2..0..2....0..2..0....3..0..0....3..0..2....1..1..0....0..0..1....3..0..1 CROSSREFS Column 1 is A084386(n+1) Sequence in context: A211643 A284640 A036605 * A323657 A238389 A115292 Adjacent sequences: A183538 A183539 A183540 * A183542 A183543 A183544 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 05 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 September 17 21:09 EDT 2024. Contains 375990 sequences. (Running on oeis4.)