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

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

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

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

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