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

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

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

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

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