A240276 Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4

15, 170, 8353, 382690, 19210586, 1063706501, 63085436203, 3958922741466, 259024497472292, 17435614748138060

Offset

1,1

Comments

Row 6 of A240271

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A201041 A201551 A339770 * A206600 A016172 A016225

Adjacent sequences: A240273 A240274 A240275 * A240277 A240278 A240279

Keyword

nonn

Author

R. H. Hardin, Apr 03 2014

Status

approved