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

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

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

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

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