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A232514 Number of (n+1)X(7+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal 1

%I

%S 340,1956,24388,270400,3267824,38988416,476578496,5831607392,

%T 71731172848,883465590796,10895684078152,134445500144828,

%U 1659595814461872,20489752990174828,252999687876493464,3124127399364936504

%N Number of (n+1)X(7+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal

%C Column 7 of A232515

%H R. H. Hardin, <a href="/A232514/b232514.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A232514/a232514.txt">Empirical recurrence of order 78</a>

%F Empirical recurrence of order 78 (see link above)

%e Some solutions for n=3

%e ..2..1..0..1..2..0..1..2....1..0..1..0..1..2..1..2....1..2..1..0..1..0..1..2

%e ..0..1..2..1..2..0..1..0....1..2..1..0..1..2..1..0....1..0..1..0..1..2..1..2

%e ..2..1..0..1..2..0..1..2....1..2..1..2..1..0..1..2....1..2..1..2..1..0..1..2

%e ..2..1..2..1..2..0..1..2....1..0..1..0..1..0..1..0....1..0..1..2..1..0..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 25 2013

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Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)