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

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

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

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

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