A256026 Number of (n+2)X(5+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1

798, 3500, 18881, 96363, 494704, 2608924, 13744343, 72433360, 383085494, 2025211622, 10699107204, 56559043253, 299094636689, 1581405435044, 8360604894932, 44203749793706, 233723001457450, 1235776972463585

Offset

1,1

Comments

Column 5 of A256029

Links

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

R. H. Hardin, Empirical recurrence of order 77

Formula

Empirical recurrence of order 77 (see link above)

Example

Some solutions for n=4
..0..1..1..0..1..1..1....1..0..1..1..1..1..0....1..1..1..1..1..1..0
..1..1..1..1..1..1..1....0..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..0....1..1..1..0..1..1..1
..1..1..0..1..1..0..1....1..1..1..1..1..1..0....1..1..1..1..1..1..1
..0..1..1..1..1..1..1....1..1..1..1..1..1..0....1..1..1..1..1..1..0
..1..1..1..1..1..1..0....1..1..1..0..1..1..0....1..0..1..1..1..1..1

Crossrefs

Cf. A256029

Sequence in context: A108252 A188536 A252346 * A200201 A045261 A101039

Adjacent sequences: A256023 A256024 A256025 * A256027 A256028 A256029

Keyword

nonn

Author

R. H. Hardin, Mar 13 2015

Status

approved