A255025 Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 or 1 and no column sum 0 or 1

1306, 8338, 60237, 391926, 2547757, 16789556, 110131505, 722619025, 4749948369, 31181555198, 204626875055, 1343622742618, 8822820748312, 57923805951937, 380282422081547, 2496764092390181, 16392666023439250, 107625734028805515

Offset

1,1

Comments

Column 6 of A255027

Links

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

R. H. Hardin, Empirical recurrence of order 71

Formula

Empirical recurrence of order 71 (see link above)

Example

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

Crossrefs

Cf. A255027

Sequence in context: A252844 A252845 A252841 * A126841 A106815 A325605

Adjacent sequences: A255022 A255023 A255024 * A255026 A255027 A255028

Keyword

nonn

Author

R. H. Hardin, Feb 13 2015

Status

approved