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

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

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

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

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