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

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

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

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

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