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

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

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

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

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