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