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A302419 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 07 2018 17:06:58

%S 32,857,1431,3548,16123,84581,306064,1137414,4669030,19117072,

%T 75529085,300884302,1210571319,4856093280,19423290085,77795634366,

%U 311818814702,1249258281500,5004132992012,20048293318277,80323158073845

%N Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 6 of A302415.

%H R. H. Hardin, <a href="/A302419/b302419.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A302419/a302419.txt">Empirical recurrence of order 79</a>

%F Empirical recurrence of order 79 (see link above)

%e Some solutions for n=5

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

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

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

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

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

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

%Y Cf. A302415.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 07 2018

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Last modified August 11 03:32 EDT 2024. Contains 375059 sequences. (Running on oeis4.)