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