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

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

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

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

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