A258513 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally

10762, 56526, 425880, 3024724, 20998652, 147635738, 1035738226, 7235753796, 50572330790, 353654314702, 2472408083210, 17281997636671, 120807147592868, 844510387943106, 5903497035722854, 41267662180780124, 288477736132341318

Offset

1,1

Comments

Row 3 of A258511

Links

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

Example

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

Crossrefs

Cf. A258511

Sequence in context: A256949 A146320 A211607 * A258506 A254993 A023084

Adjacent sequences: A258510 A258511 A258512 * A258514 A258515 A258516

Keyword

nonn

Author

R. H. Hardin, Jun 01 2015

Status

approved