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%I #5 Feb 16 2016 06:30:17
%S 2,9,60,565,6834,101192,1773384,35904789,824720230,21189902503,
%T 602161461276,18752026405918,635032992414506,23234614293228525,
%U 913376056016994576,38392537083966394681,1718296926207889973454
%N Number of length-n 0..n arrays with no repeated value unequal to the previous repeated value plus one mod n+1.
%C Diagonal of A268944.
%H R. H. Hardin, <a href="/A268937/b268937.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=6
%e ..2. .1. .6. .1. .5. .3. .2. .6. .2. .0. .6. .4. .5. .0. .5. .0
%e ..4. .6. .1. .6. .4. .3. .2. .0. .2. .3. .1. .5. .3. .1. .0. .5
%e ..3. .4. .2. .5. .0. .2. .0. .0. .5. .0. .5. .5. .5. .6. .2. .4
%e ..5. .3. .0. .0. .0. .6. .1. .6. .3. .1. .5. .3. .5. .3. .4. .6
%e ..6. .6. .4. .5. .5. .5. .3. .1. .5. .2. .3. .2. .1. .5. .6. .3
%e ..6. .0. .6. .1. .1. .1. .3. .4. .3. .5. .6. .6. .4. .1. .5. .5
%Y Cf. A268944.
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 16 2016
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