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

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

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

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

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