Start with a magic ring.
R1: 6 sc in the ring, 1 ss, 1 ch
R2: ( 2 sc in next st ) * 6 times, 1 ss, 1 ch
R3 - R4: ( 12 sc, 1 ss, 1 ch ) in each round
R5: ( 2 sc, 2 sc in next st ) * 4 times, 1 ss, 1 ch
R6: ( 3 sc, 2 sc in next st ) * 4 times, 1 ss, 1 ch
R7: ( 4 sc, 2 sc in next st ) * 4 times, 1 ss, 1 ch
R8-R9: ( 24 sc, 1 ss, 1 ch ) in each round
R10: ( 5 sc, 2 sc in next st ) * 4 times