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A269212 Number of nX6 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once. 2

%I #4 Feb 20 2016 11:28:16

%S 1620,360960,70371048,11985002256,1910809190712,292321215814512,

%T 43468685827935816,6331185189881558208,907653167033915932536,

%U 128509758210816109187040,18012346515317443065043752

%N Number of nX6 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.

%C Column 6 of A269214.

%H R. H. Hardin, <a href="/A269212/b269212.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A269212/a269212.txt">Empirical recurrence of order 42</a>

%F Empirical recurrence of order 42 (see link above)

%e Some solutions for n=2

%e ..0..2..2..3..2..3. .0..1..0..2..2..3. .0..0..2..2..3..2. .0..1..1..3..3..2

%e ..0..2..0..2..3..3. .0..1..3..3..2..3. .0..2..0..2..0..0. .0..1..3..2..2..3

%Y Cf. A269214.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 20 2016

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)