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

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

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

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

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