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

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

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

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

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