A233690 Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 10, and no two adjacent values equal

43540, 1596200, 62569964, 2662026560, 113995582540, 4934227972036, 213645503481064, 9270801819620976, 402191437421176864, 17459908484631363660, 757809757739957565140, 32899894121039441950420

Offset

1,1

Comments

Column 7 of A233691

Links

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

Example

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

Crossrefs

Sequence in context: A103875 A224623 A210331 * A205923 A251995 A094493

Adjacent sequences: A233687 A233688 A233689 * A233691 A233692 A233693

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved