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