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

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

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

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

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