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

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

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

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

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