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

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

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

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

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