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

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

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

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

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