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