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

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

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

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

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