A235677 Number of (n+1)X(6+1) 0..1 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.

9418, 650928, 44196144, 2985166430, 201368802704, 13578805464958, 915571832243030, 61732408470815696, 4162281818292994236, 280639690768870439812, 18921978290641266201918, 1275803956877960415549616

Offset: 1

Author

R. H. Hardin, Jan 13 2014

Keywords

• nonn

Comments

Column 6 of A235679

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 87

Formula

Empirical recurrence of order 87 (see link above)