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

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

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

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

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