First, the variable blstr is not assigned the desired result unless you use "command substitution", i.e. $(seq ... ). Then, why do you use the hsgen variable at all instead of issuing the command...
Like this may be:
for i in {1..14}; do
echo "Blade $i:"
rline="ssh gotc10$i mpstat -P ALL | awk '{print $3}'"
blinfo2=$(eval $rline)
eval cpuarray$i+='($(echo $blinfo2 | awk...