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 A229365 Number of n X n 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally 1
 3, 38, 1610, 222990, 104382552, 162794962814, 851668326534130, 14897378230939391994, 872764112558460116016396, 171094770747292212524499798502, 112292092887713869652391305250607824 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A229372 LINKS R. H. Hardin, Table of n, a(n) for n = 1..13 EXAMPLE Some solutions for n=3 ..1..2..2....2..2..2....1..0..0....0..2..0....0..1..2....0..1..0....0..1..0 ..1..0..0....0..0..1....2..1..2....0..1..0....1..0..1....0..2..1....0..1..0 ..1..2..1....1..0..2....1..2..1....2..2..0....1..0..0....2..0..1....0..2..2 CROSSREFS Sequence in context: A062155 A278927 A099022 * A136638 A213002 A213003 Adjacent sequences:  A229362 A229363 A229364 * A229366 A229367 A229368 KEYWORD nonn AUTHOR R. H. Hardin Sep 21 2013 STATUS approved

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Last modified January 22 13:41 EST 2020. Contains 331149 sequences. (Running on oeis4.)