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

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

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

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

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