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

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

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

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

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