A222475 Number of nX4 0..3 arrays with no more than floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order

4, 10, 42, 235, 1450, 30883, 267772, 7073732, 67911068, 1835377464, 17762404598, 478005487727, 4694125854134, 124576004895424, 1240340640828968, 32486189811716076, 327738319146833494, 8473377832221877331

Offset

1,1

Comments

Column 4 of A222479

Links

R. H. Hardin, Table of n, a(n) for n = 1..96

Example

Some solutions for n=4
..0..0..0..0....0..0..0..0....0..0..0..1....0..0..0..0....0..0..1..0
..0..0..0..0....0..0..0..0....0..0..0..2....0..0..0..0....0..0..0..1
..1..1..0..0....0..0..0..0....0..0..0..3....0..0..0..0....0..0..0..0
..1..1..0..0....0..1..2..3....0..0..0..2....1..0..1..1....0..0..0..0

Crossrefs

Sequence in context: A149218 A149219 A361938 * A194993 A280907 A372648

Adjacent sequences: A222472 A222473 A222474 * A222476 A222477 A222478

Keyword

nonn

Author

R. H. Hardin Feb 21 2013

Status

approved