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

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

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

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

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