A233923 Number of (n+1)X(3+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 and no adjacent elements equal

2792, 32496, 405004, 5389600, 73564176, 1020495508, 14257498880, 200008938060, 2811049435848, 39549756517288, 556711349099564, 7838538953766172, 110381080046653952, 1554480581032234832, 21892229373580339212

Offset

1,1

Comments

Column 3 of A233928

Links

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

R. H. Hardin, Empirical recurrence of order 82

Formula

Empirical recurrence of order 82 (see link above)

Example

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

Crossrefs

Sequence in context: A014895 A106300 A252601 * A340174 A252900 A236637

Adjacent sequences: A233920 A233921 A233922 * A233924 A233925 A233926

Keyword

nonn

Author

R. H. Hardin, Dec 17 2013

Status

approved