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

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

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

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

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