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

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

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

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

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