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

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

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

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

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