A254996 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally and vertically

827673, 10216539, 173958123, 2437254993, 31738435946, 446654943404, 6335613688670, 88118860757033, 1226510345770217, 17139951751472936, 239224025485355840, 3335413976901843408, 46520160640609183888

Offset

1,1

Comments

Column 6 of A254998

Links

R. H. Hardin, Table of n, a(n) for n = 1..59

Example

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

Crossrefs

Cf. A254998

Sequence in context: A293291 A258516 A258509 * A083618 A238062 A131684

Adjacent sequences: A254993 A254994 A254995 * A254997 A254998 A254999

Keyword

nonn

Author

R. H. Hardin, Feb 11 2015

Status

approved