A251174 Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements less than the absolute difference of its antidiagonal elements

78041038, 281464393752, 1127188549315094, 4564338162026063711, 18536660798329970607776, 75319567891767975640548195, 306103162755761207993034999912, 1244054167066638515228055818688265

Offset

1,1

Comments

Column 7 of A251175

Links

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

Example

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

Crossrefs

Sequence in context: A203825 A109178 A178556 * A053431 A179578 A186598

Adjacent sequences: A251171 A251172 A251173 * A251175 A251176 A251177

Keyword

nonn

Author

R. H. Hardin, Nov 30 2014

Status

approved