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

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

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

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

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