A265375 Number of 5Xn arrays containing n copies of 0..5-1 with no equal horizontal, vertical or antidiagonal neighbors and new values introduced sequentially from 0.

1, 99, 4954, 363850, 25964546, 2006263350, 159927435847, 13175135914848, 1111064939631727, 95607791613443343, 8362857163936394397

Offset

1,2

Comments

Row 5 of A265373.

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Cf. A265373.

Sequence in context: A196903 A017815 A017762 * A197528 A196221 A069363

Adjacent sequences: A265372 A265373 A265374 * A265376 A265377 A265378

Keyword

nonn

Author

R. H. Hardin, Dec 07 2015

Status

approved