A184609 Half the number of (n+1)X5 binary arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one

350, 5430, 84828, 1396000, 22837236, 371916790, 6057271712, 98736408638, 1609249499406, 26226651558476, 427426869260636, 6966059653561716, 113530198300555118, 1850270720091619100, 30154985100111173212

Offset

1,1

Comments

Column 4 of A184614

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 3X5
..1..0..0..1..0....0..1..0..1..1....0..1..1..0..1....1..1..0..0..0
..0..0..1..0..0....0..0..0..0..0....1..1..0..1..1....0..0..1..1..1
..1..1..0..1..1....1..1..1..1..0....1..1..1..1..1....1..1..0..0..1
...
...1..1..2..1.......1..1..1..2.......3..3..2..3.......2..2..2..2...
...2..2..2..2.......2..2..2..1.......4..3..3..4.......2..2..2..3...

Crossrefs

Sequence in context: A190645 A349952 A108776 * A322668 A295708 A232786

Adjacent sequences: A184606 A184607 A184608 * A184610 A184611 A184612

Keyword

nonn

Author

R. H. Hardin Jan 18 2011

Status

approved