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