%I #12 Jun 25 2017 17:12:20

%S 1,36,6588,6169500,29607951492,728359861595076,91850117930957987604,

%T 59375832328440271451653884,196759041550650648492160100067468,

%U 3342365125469959463321258123750822068332,291049545090789051667036543236086657649935910108

%N 1/5 the number of colorings of an n X n rhombic 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, A212162, A212163.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 24 2002

%E a(8)-a(9) from _Alois P. Heinz_, May 02 2012

%E a(10)-a(11) from _Andrew Howroyd_, Jun 25 2017