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

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

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

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

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