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

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

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

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

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