A256900 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally and vertically

34698, 137381, 721051, 2212280, 4687873, 9831933, 14332984, 24894558, 39386679, 61894886, 96974489, 151773647, 239095657, 367120758, 555977303, 840547925, 1262889781, 1870244703, 2741127912, 3999331686, 5791178973, 8305518851

Offset

1,1

Comments

Column 4 of A256904

Links

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

Example

Some solutions for n=2
..0..1..0..0..1..1....0..0..0..0..0..0....0..1..0..0..0..0....0..1..1..1..0..1
..0..0..0..0..1..0....0..0..0..0..1..0....1..0..0..0..1..0....0..1..0..1..1..0
..1..0..0..0..1..1....0..0..0..1..1..1....1..0..1..1..1..0....1..1..0..1..1..0
..1..1..1..1..0..0....0..0..1..1..0..1....0..1..1..0..0..1....1..1..0..1..1..1

Crossrefs

Cf. A256904

Sequence in context: A251448 A259002 A259009 * A236141 A103911 A185472

Adjacent sequences: A256897 A256898 A256899 * A256901 A256902 A256903

Keyword

nonn

Author

R. H. Hardin, Apr 12 2015

Status

approved