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

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

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

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

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