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

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

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

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

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