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

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

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

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

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