A254920 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically

1302500, 20154545, 191418723, 522548222, 2236028616, 7539746842, 25105585331, 94832985856, 330074130597, 1060499897124, 3898590944459, 13928452417046, 45320308651521, 162472645955796, 598061413688501, 1878431261643540

Offset

1,1

Comments

Column 6 of A254922

Links

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

R. H. Hardin, Empirical recurrence of order 72

Formula

Empirical recurrence of order 72 (see link above)

Example

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

Crossrefs

Sequence in context: A250830 A258535 A258528 * A002806 A216076 A053082

Adjacent sequences: A254917 A254918 A254919 * A254921 A254922 A254923

Keyword

nonn

Author

R. H. Hardin, Feb 10 2015

Status

approved