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

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

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

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

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