#!/bin/bash

if $# -eq 0
then
echo 'Error: not enough arguments!\n'
else
#mas[$1]
#mas[0]=0
#mas[1]=1
declare -a mas
mas[0]=0
mas[1]=1
a=0
b=1
i=2
while $i -le $1
do
mas[$i]=$(expr $a + $b)
a=$(expr $a + 1)
b=$(expr $b + 1)
i=$(expr $i + 1)
done
echo ${mas[*]}
fi