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 A280856 Number of nX5 0..2 arrays with no element equal to more than one of its king-move neighbors and with new values introduced in order 0 sequentially upwards. 1
 30, 442, 256, 216, 282, 491, 968, 1857, 3220, 5281, 8574, 14339, 24694, 42833, 73650, 125361, 212438, 360727, 614668, 1049609, 1791800, 3055487, 5205640, 8868669, 15113516, 25765385, 43926544, 74885231, 127643494, 217567203, 370837946 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A280859. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = a(n-1) +a(n-2) -a(n-3) +2*a(n-4) -a(n-5) +4*a(n-6) -a(n-7) -a(n-8) -2*a(n-9) -3*a(n-12) for n>18 EXAMPLE Some solutions for n=4 ..0..0..1..1..0. .0..1..1..2..1. .0..1..0..1..1. .0..1..0..0..1 ..1..2..2..0..2. .2..2..0..0..1. .0..2..0..2..0. .2..1..2..1..2 ..1..0..1..1..2. .0..1..1..2..2. .1..2..1..1..0. .0..0..2..0..2 ..0..2..2..0..0. .2..2..0..0..1. .1..0..0..2..2. .2..1..1..0..1 CROSSREFS Cf. A280859. Sequence in context: A125465 A215193 A163130 * A281602 A307917 A006421 Adjacent sequences:  A280853 A280854 A280855 * A280857 A280858 A280859 KEYWORD nonn AUTHOR R. H. Hardin, Jan 09 2017 STATUS approved

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Last modified December 6 13:45 EST 2021. Contains 349563 sequences. (Running on oeis4.)