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A068284 1/5 the number of colorings of an n X n staggered hexagonal array with 5 colors. 1

%I #9 May 03 2012 16:51:40

%S 1,36,6588,6169500,29609340804,728465439240612,91873868538291559236,

%T 59398217444060775978706980,196856852524443536659406407297548

%N 1/5 the number of colorings of an n X n staggered hexagonal array with 5 colors.

%C Terms for rhombic- and staggered- hexagonal arrays are the same for n in 1..4.

%Y Cf. A068239-A068305, A000332, A002417, A027441, A212194, A212195.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 24 2002

%E a(8)-a(9) from _Alois P. Heinz_, May 03 2012

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Last modified April 23 16:28 EDT 2024. Contains 371916 sequences. (Running on oeis4.)