A236078 Number of (n+1)X(2+1) 0..2 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise

576, 9979, 169680, 2634205, 40097396, 587963980, 8523145663, 121700475056, 1728432778182, 24403460015028, 343787025890344, 4832490504998260, 67872153417285885, 952512927560219600, 13363621591424552478

Offset

1,1

Comments

Column 2 of A236082

Links

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

R. H. Hardin, Empirical recurrence of order 82

Formula

Empirical recurrence of order 82 (see link above)

Example

Some solutions for n=3
..0..0..1....0..0..1....0..0..0....2..0..2....0..1..0....0..1..0....1..0..1
..0..1..1....0..0..2....1..1..0....1..2..1....0..2..0....0..0..0....0..0..1
..1..2..1....1..1..0....0..1..1....0..2..2....2..1..1....1..2..0....0..2..0
..2..1..2....1..1..2....0..1..2....1..1..1....0..1..2....0..2..0....1..1..0

Crossrefs

Sequence in context: A269034 A188787 A235738 * A264524 A209781 A330840

Adjacent sequences: A236075 A236076 A236077 * A236079 A236080 A236081

Keyword

nonn

Author

R. H. Hardin, Jan 19 2014

Status

approved