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