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

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

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

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

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