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