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

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

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

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

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