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

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

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

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

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