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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A239996 Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4 1
 4, 25, 190, 1372, 10405, 83029, 685898, 5825700, 50417154, 441675344, 3899065908, 34583504110, 307633283500, 2741312316323, 24453522555996, 218272506712305, 1949041652201113, 17407703510071602, 155496451538874916 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A240000 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=5 ..0..0..3....3..3..0....0..3..3....0..3..3....0..0..3....0..3..3....3..3..0 ..0..3..3....0..3..1....0..0..3....0..0..3....3..3..0....0..3..3....2..2..3 ..0..2..1....0..2..0....3..2..3....0..3..3....3..3..2....0..2..1....0..2..0 ..0..2..0....0..0..0....2..1..1....3..3..1....2..2..2....3..3..2....0..2..2 ..3..3..2....2..0..2....2..1..2....3..1..3....3..1..3....0..2..1....2..2..2 CROSSREFS Sequence in context: A221382 A215791 A175913 * A064063 A171991 A141371 Adjacent sequences:  A239993 A239994 A239995 * A239997 A239998 A239999 KEYWORD nonn AUTHOR R. H. Hardin, Mar 30 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified January 28 04:25 EST 2022. Contains 350654 sequences. (Running on oeis4.)