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