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

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

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

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

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