Fibonacci Swirl Hat

AKA The knit bunny ran down the rabbit hole... Hat Formula: Determine gauge and desired hat size (1-2" smaller than the head). Decide number of repeats (11 * 7, 8, 9, 10... ) based on the total stitch count needed. Note that some rows have 2 decreases and the stitch count changes. Work a 3/3 ribbed hem. Start with a circle cast on.

Shown with a cast-on count of 2 stitches.   Getting chart...

  • Round 1: *Kfb, repeat from * (multiple of 2 sts).
  • Round 2: *K2, yo, repeat from * (multiple of 3 sts).
  • Rounds 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, and 47: Knit.
  • Round 4: *K3, yo, repeat from * (multiple of 4 sts).
  • Round 6: *K4, yo, repeat from * (multiple of 5 sts).
  • Round 8: *K5, yo, repeat from * (multiple of 6 sts).
  • Round 10: *K6, yo, repeat from * (multiple of 7 sts).
  • Round 12: *K4, k2tog, k1, yo, repeat from *.
  • Round 14: *K3, k2tog, k1, incL, k1, yo, repeat from * (multiple of 8 sts).
  • Round 16: *K2, k2tog, k2, incL, k2, yo, repeat from * (multiple of 9 sts).
  • Round 18: *K1, k2tog, k3, incL, k3, yo, repeat from * (multiple of 10 sts).
  • Round 20: *K2tog, k3, k2tog, k1, k2, yo, repeat from * (multiple of 9 sts).
  • Round 22: *K3, k2tog, k2, incL, k2, yo, repeat from * (multiple of 10 sts).
  • Round 24: *K2, k2tog, k3, incL, k3, yo, repeat from * (multiple of 11 sts).
  • Round 26: *K1, k2tog, k8, yo, repeat from *.
  • Round 28: *K2tog, k3, k2tog, k1, k3, yo, repeat from * (multiple of 10 sts).
  • Round 30: *K3, k2tog, k3, incL, k2, yo, repeat from * (multiple of 11 sts).
  • Round 32: *K2, k2tog, k4, incL, k3, yo, repeat from * (multiple of 12 sts).
  • Round 34: *K1, k2tog, k9, yo, repeat from *.
  • Round 36: *K2tog, k4, k2tog, k4, yo, repeat from * (multiple of 11 sts).
  • Round 38: *K4, k2tog, k5, yo, repeat from *.
  • Round 40: *K3, k2tog, k6, yo, repeat from *.
  • Round 42: *K2, k2tog, k3, k4, yo, repeat from *.
  • Round 44: *K1, k2tog, k4, k4, yo, repeat from *.
  • Round 46: *K2tog, k4, k2, k3, yo, repeat from *.
  • Round 48: *K11, yo, repeat from * (multiple of 12 sts).