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

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

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

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

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