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

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

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

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

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