A230794 Number of (n+3)X(6+3) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero

84052224, 128788339184, 312443804166400, 556151445605511168, 991594953505024518400, 1865179580060888014989264, 3461877651419949227125424704, 6376401388218250263517814866688

Offset

1,1

Comments

Column 6 of A230796

Links

R. H. Hardin, Table of n, a(n) for n = 1..47

Example

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

Crossrefs

Sequence in context: A118079 A186091 A295465 * A186922 A185806 A115534

Adjacent sequences: A230791 A230792 A230793 * A230795 A230796 A230797

Keyword

nonn

Author

R. H. Hardin, Oct 30 2013

Status

approved