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