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

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

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

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

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