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 A222567 Number of nX2 0..2 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order 2
 1, 1, 5, 18, 59, 200, 820, 3014, 11364, 42748, 164652, 627034, 2399454, 9229494, 35487202, 137093302, 528389870, 2048668614, 7920616338, 30777407006, 119302534874, 464420087686, 1804371752146, 7034061387558, 27382292281570 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Column 2 of A222573 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE All solutions for n=3 ..0..0....0..0....0..0....0..1....0..1 ..0..0....0..0....0..0....1..1....0..0 ..0..0....1..0....0..1....1..1....0..0 CROSSREFS Sequence in context: A034567 A133648 A284968 * A099449 A104630 A062809 Adjacent sequences: A222564 A222565 A222566 * A222568 A222569 A222570 KEYWORD nonn AUTHOR R. H. Hardin Feb 25 2013 STATUS approved

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Last modified December 8 14:17 EST 2022. Contains 358693 sequences. (Running on oeis4.)