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

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

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

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

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