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

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

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

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

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