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

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

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

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

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