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

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

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

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

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