A251298 Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to 3 6 or 9

361244, 9240612, 280654684, 10472034724, 475709341972, 25252159754868, 1492135910643272, 94429432665791560, 6236898155215652824, 423010342270840123048, 29168288863040798660104, 2032195260302124232141712

Offset

1,1

Comments

Column 6 of A251300

Links

R. H. Hardin, Table of n, a(n) for n = 1..54

Example

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

Crossrefs

Sequence in context: A190390 A357700 A034630 * A235197 A263213 A109160

Adjacent sequences: A251295 A251296 A251297 * A251299 A251300 A251301

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved