end=6
for i in {1..5}; do 
	num=0
	for j in `seq $i $end`; do 
		num=$(($num + $j))
	done
	if [ $i -eq 3 ]; then
		arr[$i]="Three"
	else
		arr[$i]=$num
	fi
done

for i in `seq 1 5`; do
	echo "arr[$i] = " ${arr[$i]}
done