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 A239651 Number of 3Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4 1
 10, 112, 1182, 12246, 127454, 1320102, 13703468, 142051652, 1473731150, 15282171258, 158517866826, 1643986061990, 17051506678146, 176848369394606, 1834236131924494, 19023918997995414, 197310588661661646 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 3 of A239649 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 8*a(n-1) +73*a(n-2) -446*a(n-3) -1413*a(n-4) +8070*a(n-5) +12185*a(n-6) -63420*a(n-7) -49358*a(n-8) +220534*a(n-9) +39486*a(n-10) -241802*a(n-11) +244780*a(n-12) -89648*a(n-13) -386680*a(n-14) -228008*a(n-15) +129984*a(n-16) -457816*a(n-17) -1064416*a(n-18) -330768*a(n-19) +556128*a(n-20) -351872*a(n-21) +769280*a(n-22) +407552*a(n-23) -200704*a(n-24) +32768*a(n-25) EXAMPLE Some solutions for n=5 ..1..0..3..1..0....3..0..1..3..0....3..1..1..3..1....1..0..0..0..0 ..2..1..0..1..1....2..1..2..2..1....2..0..0..3..0....2..0..0..0..1 ..3..1..2..1..1....2..0..0..0..0....1..0..2..2..2....3..0..0..0..0 CROSSREFS Sequence in context: A046164 A322724 A184131 * A014484 A110040 A298074 Adjacent sequences:  A239648 A239649 A239650 * A239652 A239653 A239654 KEYWORD nonn AUTHOR R. H. Hardin, Mar 23 2014 STATUS approved

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Last modified February 21 06:40 EST 2019. Contains 320371 sequences. (Running on oeis4.)