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