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