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

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

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

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

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