A251018 Number of (n+1)X(7+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the maximum of its antidiagonal elements

5657125, 6895174650, 8124335802103, 9606281958966442, 11361245256068263101, 13434537978036585857431, 15886176013807764828256390, 18785635148748205309781691487, 22214352650941113874305586694336

Offset

1,1

Comments

Column 7 of A251019

Links

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

Example

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

Crossrefs

Sequence in context: A258529 A254921 A290162 * A254388 A254395 A253983

Adjacent sequences: A251015 A251016 A251017 * A251019 A251020 A251021

Keyword

nonn

Author

R. H. Hardin, Nov 29 2014

Status

approved