A222478 Number of nX7 0..3 arrays with no more than floor(nX7/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order

17, 139, 2953, 267772, 4927416, 544804117, 17557049164, 3344195404943, 145842478973059, 43014763466911784, 2152016451274069352, 684473548396481784093, 34905249009694803928802

Offset

1,1

Comments

Column 7 of A222479

Links

R. H. Hardin, Table of n, a(n) for n = 1..14

Example

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

Crossrefs

Sequence in context: A298626 A157360 A142815 * A228254 A376459 A304207

Adjacent sequences: A222475 A222476 A222477 * A222479 A222480 A222481

Keyword

nonn

Author

R. H. Hardin Feb 21 2013

Status

approved