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

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

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

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

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