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

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

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

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

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