3D wide bubble like stitch

Trying to reproduce an effect seen on a manufactured hat.

Shown with a cast-on count of 48 stitches.   Getting chart...

  • Row 1 (RS): K3, p45.
  • Row 2: P3, k39, p6.
  • Row 3: K9, p33, k6.
  • Row 4: P9, k27, p12.
  • Row 5: K15, p21, k12.
  • Row 6: P15, k15, p18.
  • Row 7: K21, p9, k18.
  • Row 8: P21, k3, p21, k3.
  • Row 9: P6, k39, p3.
  • Row 10: K6, p33, k9.
  • Row 11: P12, k27, p9.
  • Row 12: K12, p21, k15.
  • Row 13: P18, k15, p15.
  • Row 14: K18, p9, k21.
  • Row 15: P24, k3, p21.
  • Row 16: K21, p3, k24.
  • Row 17: P21, k9, p18.
  • Row 18: K15, p15, k18.
  • Row 19: P15, k21, p12.
  • Row 20: K9, p27, k12.
  • Row 21: P9, k33, p6.
  • Row 22: K3, p39, k6.
  • Row 23: P3, k21, p3, k21.
  • Row 24: P18, k9, p21.
  • Row 25: K18, p15, k15.
  • Row 26: P12, k21, p15.
  • Row 27: K12, p27, k9.
  • Row 28: P6, k33, p9.
  • Row 29: K6, p39, k3.
  • Row 30: K45, p3.