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

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

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

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

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