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

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

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

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

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