A254392 - OEIS

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A254392

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

1

21304, 409051, 8533796, 174326376, 3575408117, 73650997253, 1515512093870, 31188009589764, 641966562516394, 13212911552237700, 271951256688591938, 5597467294539748181, 115210140169090180677, 2371319030494681940359

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 3 of A254390

LINKS

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

R. H. Hardin, Empirical recurrence of order 68

FORMULA

Empirical recurrence of order 68 (see link above)

EXAMPLE

Some solutions for n=1

..1..1..0....1..0..1....0..1..0....1..1..0....1..0..1....1..0..1....1..0..0

..1..0..1....0..0..1....0..1..1....1..1..0....0..0..1....0..1..1....1..0..0

..0..1..1....0..1..0....1..1..0....0..0..1....0..1..1....0..1..0....1..1..0

..1..1..1....1..1..1....1..1..1....1..0..1....1..1..1....1..1..0....0..1..0

..0..1..1....0..1..1....1..1..1....0..0..1....0..1..1....1..1..0....1..0..1

CROSSREFS

Sequence in context: A234408 A177857 A254385 * A253980 A349508 A250532

Adjacent sequences: A254389 A254390 A254391 * A254393 A254394 A254395

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 29 2015

STATUS

approved