A184496 Number of (n+1)X9 0..2 arrays with every 2X2 subblock sum greater than 4.

2390621, 3094453927, 2270452765634, 2128664486092091, 1816385262206308219, 1612270608569309926290, 1408627940819572965700159, 1238778403260497748171275569, 1086512813331341301756827657370

Offset

1,1

Comments

Column 8 of A184497

Links

R. H. Hardin, Table of n, a(n) for n = 1..118

Example

Some solutions for 3X9
..0..1..0..1..0..1..1..1..1....0..1..0..1..0..2..1..2..2
..2..2..2..2..2..2..1..2..1....2..2..2..2..2..2..2..2..1
..0..1..0..2..1..1..2..2..0....0..1..0..2..1..0..2..1..2

Crossrefs

Sequence in context: A185853 A232413 A167890 * A022247 A198781 A104941

Adjacent sequences: A184493 A184494 A184495 * A184497 A184498 A184499

Keyword

nonn

Author

R. H. Hardin, Jan 15 2011

Status

approved