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

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

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

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

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