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