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

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

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

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

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