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A268454 Number of length-n 0..5 arrays with no adjacent pair x,x+1 followed at any distance by x+1,x. 1

%I

%S 6,36,211,1231,7160,41526,240170,1385338,7970326,45742764,261899866,

%T 1496074920,8527336280,48500972230,275294704851,1559507239653,

%U 8817578095886,49763675574292,280352403988287,1576707102660739

%N Number of length-n 0..5 arrays with no adjacent pair x,x+1 followed at any distance by x+1,x.

%C Column 5 of A268457.

%H R. H. Hardin, <a href="/A268454/b268454.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A268454/a268454.txt">Empirical recurrence of order 51</a>

%F Empirical recurrence of order 51 (see link above)

%e Some solutions for n=6

%e ..4....1....1....0....5....2....5....4....1....4....5....3....0....4....5....0

%e ..0....5....0....0....5....1....5....2....4....5....2....3....2....2....4....4

%e ..3....2....0....0....5....5....4....2....0....3....4....5....3....3....0....5

%e ..5....3....5....2....0....5....2....4....0....2....3....0....5....0....5....1

%e ..0....4....4....3....1....1....5....4....4....1....2....4....2....2....1....1

%e ..4....0....5....4....1....1....0....1....4....1....4....2....1....4....0....3

%Y Cf. A268457.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 04 2016

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Last modified May 24 19:38 EDT 2022. Contains 354043 sequences. (Running on oeis4.)