A184662 Number of (n+2)X5 0..3 arrays with each 3X3 subblock singular

35802874, 10047874534, 2738040689182, 452748537865658, 113762289821953494

Offset

1,1

Comments

Column 3 of A184663

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for 4X5
..0..0..0..0..0....0..0..0..0..1....0..0..1..3..1....0..0..0..0..1
..0..0..0..0..0....0..0..0..0..3....0..0..0..0..2....0..0..0..0..1
..0..0..0..0..1....0..0..0..3..3....0..0..0..0..3....0..0..0..0..1
..0..0..0..2..2....0..0..0..0..3....0..0..0..1..1....0..0..0..0..2

Crossrefs

Sequence in context: A015379 A147714 A125572 * A017407 A017527 A204336

Adjacent sequences: A184659 A184660 A184661 * A184663 A184664 A184665

Keyword

nonn

Author

R. H. Hardin Jan 19 2011

Status

approved