battleship-combinatorics-0.0.0.1: Compute number of possible arrangements in the battleship game (Index - U)

battleship-combinatorics-0.0.0.1: Compute number of possible arrangements in the battleship game

A
B
C
D
E
F
G
H
I
K
L
M
N
O
P
R
S
T
U
V
W
Z
All

Index - U

Use	Combinatorics.Battleship.Count.Frontier