A240646 Number of nX5 0..1 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..1 introduced in row major order

3, 6, 23, 61, 232, 953, 4343, 19458, 90165, 421048, 1984496, 9408853, 44826507, 214397042, 1027671976, 4934720969, 23725826486, 114171204929, 549741892899, 2648230058688, 12761166119581, 61506635738385, 296498879827182

Offset

1,1

Comments

Column 5 of A240649

Links

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

Example

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

Crossrefs

Sequence in context: A341549 A151443 A148643 * A148644 A148645 A148646

Adjacent sequences: A240643 A240644 A240645 * A240647 A240648 A240649

Keyword

nonn

Author

R. H. Hardin, Apr 09 2014

Status

approved