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

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

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

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

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