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%I #9 Jun 26 2017 01:27:45
%S 1,2,5,102,1250,159712,4851360,1590366402,83943993818,52903063680088,
%T 4173873098644366,4356236728241936100,472112409203884877570,
%U 744172525994204410810964,104912731359552572271902248,234520384912168611980200390370,41397926646267697867589499650186
%N Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an n X 5 array with new integer colors introduced in row major order.
%H Andrew Howroyd, <a href="/A215845/b215845.txt">Table of n, a(n) for n = 0..50</a>
%e Some solutions for n=3:
%e ..0..x..1..x..2....0..x..1..x..2....0..x..1..x..2....0..x..1..x..2
%e ..x..3..x..4..x....x..3..x..4..x....x..3..x..0..x....x..3..x..4..x
%e ..5..x..2..x..1....5..x..0..x..3....4..x..5..x..3....5..x..6..x..0
%Y Column 5 of A215847.
%K nonn
%O 0,2
%A _R. H. Hardin_, Aug 24 2012
%E a(0)=1 prepended and terms a(13) and beyond from _Andrew Howroyd_, Jun 25 2017
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