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