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

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

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

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

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