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

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

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

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

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