A253981 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically

136868, 4858102, 179261149, 6386040127, 228352636069, 8192431991746, 293237386040072, 10498927207163381, 375987905127103160, 13462875190480222837, 482069048306284629635, 17261890669111868427750

Offset

1,1

Comments

Column 4 of A253985

Links

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

Example

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

Crossrefs

Sequence in context: A237470 A254386 A254393 * A191819 A015071 A130422

Adjacent sequences: A253978 A253979 A253980 * A253982 A253983 A253984

Keyword

nonn

Author

R. H. Hardin, Jan 21 2015

Status

approved