A233679 Number of (n+1)X(5+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 6

8712, 117744, 1500800, 25036784, 365293440, 6336415296, 95799636288, 1660462199232, 25500227965248, 438642994287168, 6806097080023872, 116152846851935808, 1816799517745700160, 30788724031193453120

Offset

1,1

Comments

Column 5 of A233682

Links

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

R. H. Hardin, Empirical recurrence of order 99

Formula

Empirical recurrence of order 99 (see link above)

Example

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

Crossrefs

Sequence in context: A035909 A031877 A222815 * A266578 A031852 A115614

Adjacent sequences: A233676 A233677 A233678 * A233680 A233681 A233682

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved