A179011 T(n,k)=Log base 2 of the number of nXk binary arrays with no element equal to the modulo 2 sum of its knight-move neighbors

0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 4, 0, 4, 0, 0, 2, 0, 0, 2, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 4, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 0, 4, 0, 0, 4, 4, 4, 0, 0, 4, 0, 0, 2, 0, 4, 0, 2, 2, 0, 4, 0, 2, 0, 0, 0, 2, 4, 0, 4, 4, 4, 0, 4, 2, 0, 0, 0, 0, 0, 4, 2, 2, 6, 6, 2, 2, 4, 0, 0, 0, 0, 0, 0

Offset

1,8

Comments

Table starts

.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0..0.0.0.0.0.0

.0.0.2.4.2.0.0.0.2.4.2.0.0.0.2..4.2.0.0.0

.0.2.0.0.2.0.0.2.0.0.2.0.0.2.0..0.2.0.0

.0.4.0.0.0.4.0.0.4.4.4.0.0.4.0..0.0.4

.0.2.2.0.0.2.4.0.0.2.2.0.0.4.4..4.0

.0.0.0.4.2.4.2.4.2.4.0.0.0.0.6.12

.0.0.0.0.4.2.4.6.0.0.2.2.2.0.5

.0.0.2.0.0.4.6.8.0.0.2.0.0.0

.0.2.0.4.0.2.0.0.4.0.6.2.2

.0.4.0.4.2.4.0.0.0.0.0.4

.0.2.2.4.2.0.2.2.6.0

.0.0.0.0.0.0.2.0.2

.0.0.0.0.0.0.2.0

.0.0.2.4.4.0.0

.0.2.0.0.4.6

.0.4.0.0.4

.0.2.2.0

.0.0.0

.0.0

.0

Links

R. H. Hardin, Table of n, a(n) for n = 1..220

Example

All solutions for 5X5
..1..0..1..0..1
..0..1..1..1..0
..1..1..1..1..1
..0..1..1..1..0
..1..0..1..0..1

Crossrefs

Sequence in context: A062275 A138270 A317643 * A300465 A300646 A300776

Adjacent sequences: A179008 A179009 A179010 * A179012 A179013 A179014

Keyword

nonn,tabl

Author

R. H. Hardin Jan 04 2011

Status

approved