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

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

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

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

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