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A222630 Number of nX3 0..1 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order 1
1, 3, 5, 34, 67, 388, 915, 4850, 12037, 63153, 160358, 836672, 2142061, 11227043, 28804656, 151800559, 389791479, 2064625690, 5304948795, 28213912362, 72561522182, 387104648245, 996738887853, 5329732448357, 13741158092254 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A222635

LINKS

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

EXAMPLE

All solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A225866 A263295 A222484 * A187993 A221158 A068111

Adjacent sequences:  A222627 A222628 A222629 * A222631 A222632 A222633

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 26 2013

STATUS

approved

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Last modified January 28 03:49 EST 2020. Contains 331317 sequences. (Running on oeis4.)