A220924 Majority value maps: number of 3 X n binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 3 X n array.

1, 35, 324, 2874, 23519, 189300, 1518325, 12108564, 96462722, 767444203, 6103182056, 48518471669, 385655300194, 3065114816680, 24359921393810, 193594157479808, 1538519483815008, 12226723695041600, 97166262202404105

Offset

1,2

Comments

Row 3 of A220922.

Links

R. H. Hardin, Table of n, a(n) for n = 1..78

Example

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

Crossrefs

Cf. A220922.

Sequence in context: A125773 A198397 A071697 * A220995 A264488 A371841

Adjacent sequences: A220921 A220922 A220923 * A220925 A220926 A220927

Keyword

nonn

Author

R. H. Hardin, Dec 25 2012

Status

approved