A204958 Number of (n+1)X5 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing

450, 6921, 103106, 1442543, 19632936, 252709954, 3129723425, 37097334426, 424701572464, 4704392025279, 50721613017917, 534002073864820, 5513194928140939, 55986187518812436, 560944675759847942

Offset

1,1

Comments

Column 4 of A204962

Links

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

Example

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

Crossrefs

Sequence in context: A235438 A204719 A235403 * A189653 A232035 A035752

Adjacent sequences: A204955 A204956 A204957 * A204959 A204960 A204961

Keyword

nonn

Author

R. H. Hardin Jan 20 2012

Status

approved