A235769 Number of (n+1) X (4+1) 0..1 arrays with the sum of each 2 X 2 subblock two extreme terms minus its two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.

288, 1948, 12417, 70752, 377890, 1874171, 8783904, 38884279, 163704284, 657363226, 2525936111, 9324137986, 33129297593, 113732864597, 377785457375, 1218228779121, 3817997272627, 11661674918706, 34748345374833

Offset

1,1

Comments

Column 4 of A235772.

Links

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

R. H. Hardin, Empirical recurrence of order 88

Formula

Empirical recurrence of order 88 (see link above).

Example

Some solutions for n=4
..0..0..1..0..1....0..0..1..0..0....1..0..0..1..0....0..1..0..0..0
..1..1..0..0..0....1..1..0..1..0....0..1..0..0..0....1..0..1..0..1
..1..1..0..0..1....0..1..0..0..1....1..1..0..0..0....1..0..1..1..0
..1..0..1..1..0....1..1..1..1..1....1..0..1..1..1....0..1..0..1..1
..1..1..0..1..1....0..1..0..1..0....1..1..1..0..0....1..1..0..0..1

Crossrefs

Cf. A235772.

Sequence in context: A296784 A235078 A235072 * A049230 A322677 A235552

Adjacent sequences: A235766 A235767 A235768 * A235770 A235771 A235772

Keyword

nonn

Author

R. H. Hardin, Jan 15 2014

Status

approved