A240408 Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4

4, 32, 202, 1526, 10749, 79090, 573490, 4185321, 30488162, 222232658, 1619848067, 11805053329, 86050232733, 627116919124, 4571009728681, 33313730895602, 242812260697701, 1769667060944824, 12898232020096920, 94006154577642335

Offset

1,1

Comments

Column 3 of A240412

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..3..2..3....2..3..2....2..3..3....2..3..2....3..2..2....2..3..3....3..2..2
..3..1..3....2..3..2....1..3..1....2..1..0....3..2..0....2..3..2....1..2..0
..1..2..2....3..0..2....3..0..0....2..0..1....1..0..2....3..1..3....2..0..0
..2..3..0....2..1..1....2..0..0....1..0..3....1..2..0....3..1..2....2..3..2

Crossrefs

Sequence in context: A270015 A271161 A002012 * A248216 A133642 A098981

Adjacent sequences: A240405 A240406 A240407 * A240409 A240410 A240411

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved