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 A229589 Number of defective 3-colorings of a 4 X n 0..2 array connected horizontally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order. 1
 0, 224, 2160, 19764, 167364, 1375152, 11035044, 87040260, 677327004, 5213798784, 39777273072, 301217858676, 2266655495148, 16964398022220, 126372108661164, 937513290523896, 6929886363153768, 51058923535878660, 375112065125492964 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row 4 of A229586. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 18*a(n-1) - 111*a(n-2) + 282*a(n-3) - 333*a(n-4) + 180*a(n-5) - 36*a(n-6) for n > 12. EXAMPLE Some solutions for n=3: 0 1 0 0 0 1 0 1 0 0 1 0 0 1 0 0 1 2 0 0 1 2 2 1 2 0 1 2 2 0 2 2 1 0 2 2 2 0 2 1 0 2 1 0 1 1 2 1 0 2 1 0 2 0 0 1 2 1 0 1 2 1 2 2 0 2 0 2 0 0 2 1 0 2 0 2 0 2 2 2 0 0 1 0 CROSSREFS Cf. A229586. Sequence in context: A233869 A146745 A015048 * A341048 A232804 A032802 Adjacent sequences: A229586 A229587 A229588 * A229590 A229591 A229592 KEYWORD nonn AUTHOR R. H. Hardin, Sep 26 2013 STATUS approved

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Last modified May 28 15:12 EDT 2024. Contains 372916 sequences. (Running on oeis4.)