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

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

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

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

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