(0 19 7 5 3)(1 16 13 11 9)(2 18 4)(6 10 8)(12 15 14)(17 21 20)
ALLOWS (11/8)-SEQUENCE
1: (0 5 10)
(0 8 6 10 3)(1 16 13 11 9)(2 18 4)(5 19 7)(12 15 14)(17 21 20)
2: (1 16 9)
(0 8 6 10 3)(1)(2 18 4)(5 19 7)(9 13 11)(12 15 14)(16)(17 21 20)
3: (0 8 3)
(0)(1)(2 18 4)(3 6 10)(5 19 7)(8)(9 13 11)(12 15 14)(16)(17 21 20)
4: (2 18 4)
(0)(1)(2)(3 6 10)(4)(5 19 7)(8)(9 13 11)(12 15 14)(16)(17 21 20)(18)