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

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

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

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

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