A265995 Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors not equal to itself.

1, 1, 30, 7, 1, 26, 59, 45, 64, 186, 295, 506, 885, 1725, 3265, 5893, 10108, 19684, 36250, 64589, 121581, 227175, 416368, 772126, 1440512, 2674555, 4977901, 9315535, 17396488, 32509051, 61052607, 114584666, 215397646, 406200423, 766485477

Offset

1,3

Comments

Row 5 of A265991.

Links

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

Example

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

Crossrefs

Cf. A265991.

Sequence in context: A036390 A040879 A040877 * A040876 A277982 A287921

Adjacent sequences: A265992 A265993 A265994 * A265996 A265997 A265998

Keyword

nonn

Author

R. H. Hardin, Dec 19 2015

Status

approved