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A068282 1/15 the number of colorings of an n X n rhombic hexagonal array with 15 colors. 1

%I #8 May 02 2012 12:12:41

%S 1,2366,815732918,40982736076490390,300036182355657182688325982,

%T 320085523640263850036240170626275000126,

%U 49759746073476452859128357237174600753071750263576974,1127223407032446992094203888014898257130328919220827996504247743755014

%N 1/15 the number of colorings of an n X n rhombic hexagonal array with 15 colors.

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

%Y Cf. A068239-A068305, A000332, A002417, A027441, A212162, A212163.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 24 2002

%E a(5)-a(8) from _Alois P. Heinz_, May 02 2012

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Last modified April 19 14:10 EDT 2024. Contains 371792 sequences. (Running on oeis4.)