A251380 Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock summing to 5 6 or 7

55551652, 63575161960, 81356563852940, 109536506378241540, 151084764887689962372, 210879779184193148642264, 296092553702065939395006096, 416993826270193677454000618112

Offset

1,1

Comments

Column 7 of A251381

Links

R. H. Hardin, Table of n, a(n) for n = 1..158

Example

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

Crossrefs

Sequence in context: A346360 A234794 A067388 * A269476 A234759 A172593

Adjacent sequences: A251377 A251378 A251379 * A251381 A251382 A251383

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved