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

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

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

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

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