A235544 - OEIS

A235544

Number of (n+1)X(4+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise

378, 4348, 61401, 758256, 9618173, 108503097, 1173374675, 11635568187, 109453308692, 966932051675, 8150811220681, 65564257527282, 507436990647073, 3788110079413002, 27409572083960061, 192741633876530444

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 4 of A235548

LINKS

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

EXAMPLE

Some solutions for n=3

..1..0..0..0..1....0..0..0..0..1....0..1..0..0..0....0..1..0..0..1

..0..0..1..1..0....0..0..0..1..1....0..0..0..1..1....0..0..0..0..1

..1..0..1..1..1....1..0..1..0..1....0..0..1..1..1....0..1..1..1..0

..1..0..0..1..0....0..0..1..1..0....0..0..1..1..0....1..0..0..1..1

CROSSREFS

Sequence in context: A154078 A047632 A033699 * A325848 A248915 A225839

Adjacent sequences: A235541 A235542 A235543 * A235545 A235546 A235547

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 12 2014

STATUS

approved