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A254487 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
114880, 2523008, 51322752, 1018596736, 20457240960, 410404894080, 8174961189248, 161730929847680, 3210076521423232, 63595517330730368, 1259132794238247296, 24922530212660579712, 493146954808216772992 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A254491

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A276100 A233732 A254494 * A253859 A237692 A186791

Adjacent sequences: A254484 A254485 A254486 * A254488 A254489 A254490

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 31 2015

STATUS

approved

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Last modified December 1 12:40 EST 2022. Contains 358468 sequences. (Running on oeis4.)