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