A222354 Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order

1, 1, 1, 8, 9, 42, 48, 222, 255, 1237, 1435, 6923, 8076, 39180, 45912, 223658, 263053, 1284616, 1515348, 7417011, 8770695, 43007282, 50961868, 250270093, 297083762, 1460832023, 1736730995, 8549309427, 10177500240, 50147906416, 59768368860

Offset

1,4

Comments

Column 2 of A222360

Links

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

Example

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

Crossrefs

Sequence in context: A317379 A298665 A284822 * A041933 A041138 A048068

Adjacent sequences: A222351 A222352 A222353 * A222355 A222356 A222357

Keyword

nonn

Author

R. H. Hardin Feb 16 2013

Status

approved