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

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

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

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

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