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

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

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

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

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