(0 18 2)(1 7 3)(4 17 15 13 12)(5 21 20)(6 10 8)(9 19 16 14 11)
ALLOWS (11/8)-SEQUENCE
1: (1 7 15)

(0 18 2)(1 13 12 4 17 15 3)(5 21 20)(6 10 8)(7)(9 19 16 14 11)
2: (4 17 12)

(0 18 2)(1 13 12 15 3)(4)(5 21 20)(6 10 8)(7)(9 19 16 14 11)(17)
3: (14 19 16)

(0 18 2)(1 13 12 15 3)(4)(5 21 20)(6 10 8)(7)(9 19 11)(14)(16)(17)
4: (3 12 15)

(0 18 2)(1 13 12)(3)(4)(5 21 20)(6 10 8)(7)(9 19 11)(14)(15)(16)(17)