A251679 Number of (n+2)X(5+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 4

5151, 13031, 54523, 264983, 1374165, 7229485, 38111915, 201286237, 1064712861, 5635265205, 29825486345, 157850862859, 835509700715, 4422802653901, 23412470736607, 123932983436039, 656034364529441, 3472740407108381

Offset

1,1

Comments

Column 5 of A251682

Links

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

R. H. Hardin, Empirical recurrence of order 89

Formula

Empirical recurrence of order 89 (see link above)

Example

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

Crossrefs

Sequence in context: A188338 A213701 A224462 * A151628 A210400 A073585

Adjacent sequences: A251676 A251677 A251678 * A251680 A251681 A251682

Keyword

nonn

Author

R. H. Hardin, Dec 06 2014

Status

approved