A252454 Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7

1731, 7223, 38966, 203320, 1058050, 5596619, 29527662, 155721485, 823647387, 4355427974, 23011713271, 121620027508, 643010695889, 3399424543954, 17969865361314, 94992368742548, 502171830132233, 2654727031396843

Offset

1,1

Comments

Column 5 of A252457

Links

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

Example

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

Crossrefs

Sequence in context: A130876 A234706 A211853 * A256807 A008745 A230967

Adjacent sequences: A252451 A252452 A252453 * A252455 A252456 A252457

Keyword

nonn

Author

R. H. Hardin, Dec 17 2014

Status

approved