(0 19 2)(1 7 6)(3 13 11 9 4)(5 10 8)(12 21 18 16 14)(15 20 17)
ALLOWS (11/8)-SEQUENCE
1: (1 7 20)

(0 19 2)(1 17 15 20 6)(3 13 11 9 4)(5 10 8)(7)(12 21 18 16 14)
2: (0 19 2)

(0)(1 17 15 20 6)(2)(3 13 11 9 4)(5 10 8)(7)(12 21 18 16 14)(19)
3: (1 17 6)

(0)(1)(2)(3 13 11 9 4)(5 10 8)(6 15 20)(7)(12 21 18 16 14)(17)(19)
4: (16 21 18)

(0)(1)(2)(3 13 11 9 4)(5 10 8)(6 15 20)(7)(12 21 14)(16)(17)(18)(19)