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

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

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

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

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