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

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

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

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

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