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