(0 18 2)(1 5 3)(4 14 12 8 6)(7 19 16 11 9)(10 15 13)(17 21 20)
ALLOWS (11/8)-SEQUENCE
1: (0 8 14)
(0 12 8 18 2)(1 5 3)(4 14 6)(7 19 16 11 9)(10 15 13)(17 21 20)
2: (7 19 9)
(0 12 8 18 2)(1 5 3)(4 14 6)(7)(9 16 11)(10 15 13)(17 21 20)(19)
3: (8 18 12)
(0 12 2)(1 5 3)(4 14 6)(7)(8)(9 16 11)(10 15 13)(17 21 20)(18)(19)
4: (10 15 13)
(0 12 2)(1 5 3)(4 14 6)(7)(8)(9 16 11)(10)(13)(15)(17 21 20)(18)(19)