A253988 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

11872, 68176, 477856, 3678188, 25361960, 175815629, 1239374238, 8586595803, 59232122744, 407768029544, 2794432910156, 19078931185909, 129919184850744, 882244188523399, 5976100030885004, 40392042347028794, 272456477342231370

Offset

1,1

Comments

Column 3 of A253993

Links

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

R. H. Hardin, Empirical recurrence of order 92

Formula

Empirical recurrence of order 92 (see link above)

Example

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

Crossrefs

Sequence in context: A249842 A251788 A194776 * A253995 A258905 A232673

Adjacent sequences: A253985 A253986 A253987 * A253989 A253990 A253991

Keyword

nonn

Author

R. H. Hardin, Jan 21 2015

Status

approved