Use 1 dpn to begin.
Cast on 1 stitch.
Row 1: (k,p,k) all in that one stitch (3 sts result)
Row 2: Purl
Row 3: (kfb) in each stitch (6 sts result)
Row 4: Purl
Row 5: (kfb) in each stitch (12 sts)
Divide the 12 stitches on to 3 dpns (4 stitches each needle) Join for working in the round.
Rnd 1: and all odd numbered rows purl if you want st st and knit if you'd like garter.
Rnd 2: *K1fb, k1; repeat from * (18 sts)
Rnd 4: *K1fb, k1; repeat from * (27 sts)
Row 6: *K1fb, k2; repeat from * (36 sts)
Row 8: *K1fb, k3; repeat from * (45 sts)
Keep following this pattern of adding one more knit between the K1fb on every other row and working the odd numbered rounds even.
This should work. I have used a pattern like this but only worked until I had 54 stitches but I think you could keep going as far as you wanted and it would still work.