how can I fill this array of 10 elements with odd numbers? Thank you

Code:
#include <stdio.h>

    main ()
{
    int a[10];
    int b,i;
    a[0]=1;

    for (b=0;b<9;b++)
    {
        a[i] = a[i]+2;

    }
    for (b=0;b<10;b++)
    {
        printf ("%d\n", a[i]);

    }
}